Color-RGB-Util-0.609/0000755000175000017500000000000014766414454011604 5ustar u1u1Color-RGB-Util-0.609/Makefile.PL0000644000175000017500000000262214766414454013560 0ustar u1u1# This file was automatically generated by Dist::Zilla::Plugin::MakeMaker v6.032. use strict; use warnings; use 5.010001; use ExtUtils::MakeMaker; my %WriteMakefileArgs = ( "ABSTRACT" => "Utilities related to RGB colors", "AUTHOR" => "perlancar ", "CONFIGURE_REQUIRES" => { "ExtUtils::MakeMaker" => 0 }, "DISTNAME" => "Color-RGB-Util", "LICENSE" => "perl", "MIN_PERL_VERSION" => "5.010001", "NAME" => "Color::RGB::Util", "PREREQ_PM" => { "Digest::SHA" => 0, "Exporter" => "5.57", "strict" => 0, "warnings" => 0 }, "TEST_REQUIRES" => { "File::Spec" => 0, "IO::Handle" => 0, "IPC::Open3" => 0, "Test::Exception" => 0, "Test::More" => "0.98", "Test::RandomResult" => 0 }, "VERSION" => "0.609", "test" => { "TESTS" => "t/*.t" } ); my %FallbackPrereqs = ( "Digest::SHA" => 0, "Exporter" => "5.57", "File::Spec" => 0, "IO::Handle" => 0, "IPC::Open3" => 0, "Test::Exception" => 0, "Test::More" => "0.98", "Test::RandomResult" => 0, "strict" => 0, "warnings" => 0 ); unless ( eval { ExtUtils::MakeMaker->VERSION(6.63_03) } ) { delete $WriteMakefileArgs{TEST_REQUIRES}; delete $WriteMakefileArgs{BUILD_REQUIRES}; $WriteMakefileArgs{PREREQ_PM} = \%FallbackPrereqs; } delete $WriteMakefileArgs{CONFIGURE_REQUIRES} unless eval { ExtUtils::MakeMaker->VERSION(6.52) }; WriteMakefile(%WriteMakefileArgs); Color-RGB-Util-0.609/META.yml0000644000175000017500000003702414766414454013063 0ustar u1u1--- abstract: 'Utilities related to RGB colors' author: - 'perlancar ' build_requires: File::Spec: '0' IO::Handle: '0' IPC::Open3: '0' Test::Exception: '0' Test::More: '0.98' Test::RandomResult: '0' configure_requires: ExtUtils::MakeMaker: '0' dynamic_config: 0 generated_by: 'Dist::Zilla version 6.032, CPAN::Meta::Converter version 2.150010' license: perl meta-spec: url: http://module-build.sourceforge.net/META-spec-v1.4.html version: '1.4' name: Color-RGB-Util provides: Color::RGB::Util: file: lib/Color/RGB/Util.pm version: '0.609' requires: Digest::SHA: '0' Exporter: '5.57' perl: '5.010001' strict: '0' warnings: '0' resources: bugtracker: https://rt.cpan.org/Public/Dist/Display.html?Name=Color-RGB-Util homepage: https://metacpan.org/release/Color-RGB-Util repository: git://github.com/perlancar/perl-Color-RGB-Util.git version: '0.609' x_Dist_Zilla: perl: version: '5.040000' plugins: - class: Dist::Zilla::Plugin::PERLANCAR::CheckPendingRelease name: '@Author::PERLANCAR/PERLANCAR::CheckPendingRelease' version: '0.001' - class: Dist::Zilla::Plugin::GatherDir config: Dist::Zilla::Plugin::GatherDir: exclude_filename: [] exclude_match: [] follow_symlinks: 0 include_dotfiles: 0 prefix: '' prune_directory: [] root: . name: '@Author::PERLANCAR/@Filter/GatherDir' version: '6.032' - class: Dist::Zilla::Plugin::PruneCruft name: '@Author::PERLANCAR/@Filter/PruneCruft' version: '6.032' - class: Dist::Zilla::Plugin::ManifestSkip name: '@Author::PERLANCAR/@Filter/ManifestSkip' version: '6.032' - class: Dist::Zilla::Plugin::MetaYAML name: '@Author::PERLANCAR/@Filter/MetaYAML' version: '6.032' - class: Dist::Zilla::Plugin::License name: '@Author::PERLANCAR/@Filter/License' version: '6.032' - class: Dist::Zilla::Plugin::PodCoverageTests name: '@Author::PERLANCAR/@Filter/PodCoverageTests' version: '6.032' - class: Dist::Zilla::Plugin::PodSyntaxTests name: '@Author::PERLANCAR/@Filter/PodSyntaxTests' version: '6.032' - class: Dist::Zilla::Plugin::ExtraTests name: '@Author::PERLANCAR/@Filter/ExtraTests' version: '6.032' - class: Dist::Zilla::Plugin::ExecDir name: '@Author::PERLANCAR/@Filter/ExecDir' version: '6.032' - class: Dist::Zilla::Plugin::ShareDir name: '@Author::PERLANCAR/@Filter/ShareDir' version: '6.032' - class: Dist::Zilla::Plugin::MakeMaker config: Dist::Zilla::Role::TestRunner: default_jobs: 1 name: '@Author::PERLANCAR/@Filter/MakeMaker' version: '6.032' - class: Dist::Zilla::Plugin::Manifest name: '@Author::PERLANCAR/@Filter/Manifest' version: '6.032' - class: Dist::Zilla::Plugin::ConfirmRelease name: '@Author::PERLANCAR/@Filter/ConfirmRelease' version: '6.032' - class: Dist::Zilla::Plugin::ExecDir name: '@Author::PERLANCAR/ExecDir script' version: '6.032' - class: Dist::Zilla::Plugin::PERLANCAR::BeforeBuild name: '@Author::PERLANCAR/PERLANCAR::BeforeBuild' version: '0.610' - class: Dist::Zilla::Plugin::Rinci::AbstractFromMeta name: '@Author::PERLANCAR/Rinci::AbstractFromMeta' version: '0.10' - class: Dist::Zilla::Plugin::PodnameFromFilename name: '@Author::PERLANCAR/PodnameFromFilename' version: '0.02' - class: Dist::Zilla::Plugin::PERLANCAR::EnsurePrereqToSpec config: Dist::Zilla::Role::ModuleMetadata: Module::Metadata: '1.000038' version: '0.006' name: '@Author::PERLANCAR/PERLANCAR::EnsurePrereqToSpec' version: '0.064' - class: Dist::Zilla::Plugin::PERLANCAR::MetaResources name: '@Author::PERLANCAR/PERLANCAR::MetaResources' version: '0.043' - class: Dist::Zilla::Plugin::CheckChangeLog name: '@Author::PERLANCAR/CheckChangeLog' version: '0.05' - class: Dist::Zilla::Plugin::CheckMetaResources name: '@Author::PERLANCAR/CheckMetaResources' version: '0.001' - class: Dist::Zilla::Plugin::CheckSelfDependency config: Dist::Zilla::Plugin::CheckSelfDependency: finder: - ':InstallModules' Dist::Zilla::Role::ModuleMetadata: Module::Metadata: '1.000038' version: '0.006' name: '@Author::PERLANCAR/CheckSelfDependency' version: '0.011' - class: Dist::Zilla::Plugin::Git::Contributors config: Dist::Zilla::Plugin::Git::Contributors: git_version: 2.39.5 include_authors: 0 include_releaser: 1 order_by: name paths: [] name: '@Author::PERLANCAR/Git::Contributors' version: '0.037' - class: Dist::Zilla::Plugin::CopyrightYearFromGit name: '@Author::PERLANCAR/CopyrightYearFromGit' version: '0.009' - class: Dist::Zilla::Plugin::IfBuilt name: '@Author::PERLANCAR/IfBuilt' version: '0.02' - class: Dist::Zilla::Plugin::MetaJSON name: '@Author::PERLANCAR/MetaJSON' version: '6.032' - class: Dist::Zilla::Plugin::MetaConfig name: '@Author::PERLANCAR/MetaConfig' version: '6.032' - class: Dist::Zilla::Plugin::MetaProvides::Package config: Dist::Zilla::Plugin::MetaProvides::Package: finder_objects: - class: Dist::Zilla::Plugin::FinderCode name: '@Author::PERLANCAR/MetaProvides::Package/AUTOVIV/:InstallModulesPM' version: '6.032' include_underscores: 0 Dist::Zilla::Role::MetaProvider::Provider: $Dist::Zilla::Role::MetaProvider::Provider::VERSION: '2.002004' inherit_missing: 1 inherit_version: 1 meta_noindex: 1 Dist::Zilla::Role::ModuleMetadata: Module::Metadata: '1.000038' version: '0.006' name: '@Author::PERLANCAR/MetaProvides::Package' version: '2.004003' - class: Dist::Zilla::Plugin::PERLANCAR::Authority name: '@Author::PERLANCAR/PERLANCAR::Authority' version: '0.001' - class: Dist::Zilla::Plugin::OurDate name: '@Author::PERLANCAR/OurDate' version: '0.040' - class: Dist::Zilla::Plugin::OurDist name: '@Author::PERLANCAR/OurDist' version: '0.02' - class: Dist::Zilla::Plugin::OurPkgVersion name: '@Author::PERLANCAR/OurPkgVersion' version: '0.21' - class: Dist::Zilla::Plugin::PodWeaver config: Dist::Zilla::Plugin::PodWeaver: finder: - ':InstallModules' - ':PerlExecFiles' plugins: - class: Pod::Weaver::Plugin::EnsurePod5 name: '@CorePrep/EnsurePod5' version: '4.020' - class: Pod::Weaver::Plugin::H1Nester name: '@CorePrep/H1Nester' version: '4.020' - class: Pod::Weaver::Section::Name name: '@Author::PERLANCAR/Name' version: '4.020' - class: Pod::Weaver::Section::Version name: '@Author::PERLANCAR/Version' version: '4.020' - class: Pod::Weaver::Section::Region name: '@Author::PERLANCAR/prelude' version: '4.020' - class: Pod::Weaver::Section::Generic name: SYNOPSIS version: '4.020' - class: Pod::Weaver::Section::Generic name: DESCRIPTION version: '4.020' - class: Pod::Weaver::Section::Generic name: OVERVIEW version: '4.020' - class: Pod::Weaver::Section::Collect name: ATTRIBUTES version: '4.020' - class: Pod::Weaver::Section::Collect name: METHODS version: '4.020' - class: Pod::Weaver::Section::Collect name: FUNCTIONS version: '4.020' - class: Pod::Weaver::Section::Leftovers name: '@Author::PERLANCAR/Leftovers' version: '4.020' - class: Pod::Weaver::Section::Region name: '@Author::PERLANCAR/postlude' version: '4.020' - class: Pod::Weaver::Section::Completion::GetoptLongComplete name: '@Author::PERLANCAR/Completion::GetoptLongComplete' version: '0.08' - class: Pod::Weaver::Section::Completion::GetoptLongSubcommand name: '@Author::PERLANCAR/Completion::GetoptLongSubcommand' version: '0.04' - class: Pod::Weaver::Section::Completion::GetoptLongMore name: '@Author::PERLANCAR/Completion::GetoptLongMore' version: '0.001' - class: Pod::Weaver::Section::Homepage::DefaultCPAN name: '@Author::PERLANCAR/Homepage::DefaultCPAN' version: '0.05' - class: Pod::Weaver::Section::Source::DefaultGitHub name: '@Author::PERLANCAR/Source::DefaultGitHub' version: '0.07' - class: Pod::Weaver::Section::Bugs::DefaultRT name: '@Author::PERLANCAR/Bugs::DefaultRT' version: '0.06' - class: Pod::Weaver::Section::Authors name: '@Author::PERLANCAR/Authors' version: '4.020' - class: Pod::Weaver::Section::Contributors name: '@Author::PERLANCAR/Contributors' version: '0.009' - class: Pod::Weaver::Section::PERLANCAR::Contributing name: '@Author::PERLANCAR/PERLANCAR/Contributing' version: '0.293' - class: Pod::Weaver::Section::Legal name: '@Author::PERLANCAR/Legal' version: '4.020' - class: Pod::Weaver::Plugin::AppendPrepend name: '@Author::PERLANCAR/AppendPrepend' version: '0.021' - class: Pod::Weaver::Plugin::EnsureUniqueSections name: '@Author::PERLANCAR/EnsureUniqueSections' version: '0.163250' - class: Pod::Weaver::Plugin::SingleEncoding name: '@Author::PERLANCAR/SingleEncoding' version: '4.020' - class: Pod::Weaver::Plugin::PERLANCAR::SortSections name: '@Author::PERLANCAR/PERLANCAR::SortSections' version: '0.082' name: '@Author::PERLANCAR/PodWeaver' version: '4.010' - class: Dist::Zilla::Plugin::PruneFiles name: '@Author::PERLANCAR/PruneFiles' version: '6.032' - class: Dist::Zilla::Plugin::Pod2Readme name: '@Author::PERLANCAR/Pod2Readme' version: '0.004' - class: Dist::Zilla::Plugin::Rinci::AddPrereqs name: '@Author::PERLANCAR/Rinci::AddPrereqs' version: '0.145' - class: Dist::Zilla::Plugin::Rinci::AddToDb name: '@Author::PERLANCAR/Rinci::AddToDb' version: '0.020' - class: Dist::Zilla::Plugin::Rinci::EmbedValidator name: '@Author::PERLANCAR/Rinci::EmbedValidator' version: '0.251' - class: Dist::Zilla::Plugin::SetScriptShebang name: '@Author::PERLANCAR/SetScriptShebang' version: '0.01' - class: Dist::Zilla::Plugin::Test::Compile config: Dist::Zilla::Plugin::Test::Compile: bail_out_on_fail: 0 fail_on_warning: author fake_home: 0 filename: t/00-compile.t module_finder: - ':InstallModules' needs_display: 0 phase: test script_finder: - ':PerlExecFiles' skips: [] switch: [] name: '@Author::PERLANCAR/Test::Compile' version: '2.058' - class: Dist::Zilla::Plugin::Test::Perl::Critic::Subset config: Dist::Zilla::Plugin::Test::Perl::Critic::Subset: finder: - ':ExecFiles' - ':InstallModules' - ':TestFiles' name: '@Author::PERLANCAR/Test::Perl::Critic::Subset' version: 3.001.006 - class: Dist::Zilla::Plugin::Test::Rinci name: '@Author::PERLANCAR/Test::Rinci' version: '0.040' - class: Dist::Zilla::Plugin::StaticInstall config: Dist::Zilla::Plugin::StaticInstall: dry_run: 0 mode: on name: '@Author::PERLANCAR/StaticInstall' version: '0.012' - class: Dist::Zilla::Plugin::EnsureSQLSchemaVersionedTest name: '@Author::PERLANCAR/EnsureSQLSchemaVersionedTest' version: '0.03' - class: Dist::Zilla::Plugin::Acme::CPANModules::Blacklist name: '@Author::PERLANCAR/Acme::CPANModules::Blacklist' version: '0.002' - class: Dist::Zilla::Plugin::Prereqs::EnsureVersion name: '@Author::PERLANCAR/Prereqs::EnsureVersion' version: '0.050' - class: Dist::Zilla::Plugin::Prereqs::CheckCircular name: '@Author::PERLANCAR/Prereqs::CheckCircular' version: '0.007' - class: Dist::Zilla::Plugin::UploadToCPAN::WWWPAUSESimple name: '@Author::PERLANCAR/UploadToCPAN::WWWPAUSESimple' version: '0.04' - class: Dist::Zilla::Plugin::Prereqs config: Dist::Zilla::Plugin::Prereqs: phase: test type: requires name: TestRequires version: '6.032' - class: Dist::Zilla::Plugin::Prereqs config: Dist::Zilla::Plugin::Prereqs: phase: runtime type: requires name: Prereqs version: '6.032' - class: Dist::Zilla::Plugin::Prereqs config: Dist::Zilla::Plugin::Prereqs: phase: develop type: x_spec name: DevelopX_spec version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':InstallModules' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':IncModules' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':TestFiles' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':ExtraTestFiles' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':ExecFiles' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':PerlExecFiles' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':ShareFiles' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':MainModule' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':AllFiles' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: ':NoFiles' version: '6.032' - class: Dist::Zilla::Plugin::FinderCode name: '@Author::PERLANCAR/MetaProvides::Package/AUTOVIV/:InstallModulesPM' version: '6.032' zilla: class: Dist::Zilla::Dist::Builder config: is_trial: 0 version: '6.032' x_authority: cpan:PERLANCAR x_contributors: - 'Steven Haryanto ' x_generated_by_perl: v5.40.0 x_serialization_backend: 'YAML::Tiny version 1.74' x_spdx_expression: 'Artistic-1.0-Perl OR GPL-1.0-or-later' x_static_install: 1 Color-RGB-Util-0.609/LICENSE0000644000175000017500000004651514766414454012624 0ustar u1u1This software is copyright (c) 2025 by perlancar . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. Terms of the Perl programming language system itself a) the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version, or b) the "Artistic License" --- The GNU General Public License, Version 1, February 1989 --- This software is Copyright (c) 2025 by perlancar . This is free software, licensed under: The GNU General Public License, Version 1, February 1989 GNU GENERAL PUBLIC LICENSE Version 1, February 1989 Copyright (C) 1989 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The license agreements of most software companies try to keep users at the mercy of those companies. By contrast, our General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. The General Public License applies to the Free Software Foundation's software and to any other program whose authors commit to using it. You can use it for your programs, too. When we speak of free software, we are referring to freedom, not price. Specifically, the General Public License is designed to make sure that you have the freedom to give away or sell copies of free software, that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of a such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must tell them their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License Agreement applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any work containing the Program or a portion of it, either verbatim or with modifications. Each licensee is addressed as "you". 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this General Public License and to the absence of any warranty; and give any other recipients of the Program a copy of this General Public License along with the Program. You may charge a fee for the physical act of transferring a copy. 2. You may modify your copy or copies of the Program or any portion of it, and copy and distribute such modifications under the terms of Paragraph 1 above, provided that you also do the following: a) cause the modified files to carry prominent notices stating that you changed the files and the date of any change; and b) cause the whole of any work that you distribute or publish, that in whole or in part contains the Program or any part thereof, either with or without modifications, to be licensed at no charge to all third parties under the terms of this General Public License (except that you may choose to grant warranty protection to some or all third parties, at your option). c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the simplest and most usual way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this General Public License. d) You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. Mere aggregation of another independent work with the Program (or its derivative) on a volume of a storage or distribution medium does not bring the other work under the scope of these terms. 3. You may copy and distribute the Program (or a portion or derivative of it, under Paragraph 2) in object code or executable form under the terms of Paragraphs 1 and 2 above provided that you also do one of the following: a) accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Paragraphs 1 and 2 above; or, b) accompany it with a written offer, valid for at least three years, to give any third party free (except for a nominal charge for the cost of distribution) a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Paragraphs 1 and 2 above; or, c) accompany it with the information you received as to where the corresponding source code may be obtained. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form alone.) Source code for a work means the preferred form of the work for making modifications to it. For an executable file, complete source code means all the source code for all modules it contains; but, as a special exception, it need not include source code for modules which are standard libraries that accompany the operating system on which the executable file runs, or for standard header files or definitions files that accompany that operating system. 4. You may not copy, modify, sublicense, distribute or transfer the Program except as expressly provided under this General Public License. Any attempt otherwise to copy, modify, sublicense, distribute or transfer the Program is void, and will automatically terminate your rights to use the Program under this License. However, parties who have received copies, or rights to use copies, from you under this General Public License will not have their licenses terminated so long as such parties remain in full compliance. 5. By copying, distributing or modifying the Program (or any work based on the Program) you indicate your acceptance of this license to do so, and all its terms and conditions. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. 7. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of the license which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the license, you may choose any version ever published by the Free Software Foundation. 8. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS Appendix: How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to humanity, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) 19yy This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) 19xx name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (a program to direct compilers to make passes at assemblers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice That's all there is to it! --- The Perl Artistic License 1.0 --- This software is Copyright (c) 2025 by perlancar . This is free software, licensed under: The Perl Artistic License 1.0 The "Artistic License" Preamble The intent of this document is to state the conditions under which a Package may be copied, such that the Copyright Holder maintains some semblance of artistic control over the development of the package, while giving the users of the package the right to use and distribute the Package in a more-or-less customary fashion, plus the right to make reasonable modifications. Definitions: "Package" refers to the collection of files distributed by the Copyright Holder, and derivatives of that collection of files created through textual modification. "Standard Version" refers to such a Package if it has not been modified, or has been modified in accordance with the wishes of the Copyright Holder as specified below. "Copyright Holder" is whoever is named in the copyright or copyrights for the package. "You" is you, if you're thinking about copying or distributing this Package. "Reasonable copying fee" is whatever you can justify on the basis of media cost, duplication charges, time of people involved, and so on. (You will not be required to justify it to the Copyright Holder, but only to the computing community at large as a market that must bear the fee.) "Freely Available" means that no fee is charged for the item itself, though there may be fees involved in handling the item. It also means that recipients of the item may redistribute it under the same conditions they received it. 1. You may make and give away verbatim copies of the source form of the Standard Version of this Package without restriction, provided that you duplicate all of the original copyright notices and associated disclaimers. 2. You may apply bug fixes, portability fixes and other modifications derived from the Public Domain or from the Copyright Holder. A Package modified in such a way shall still be considered the Standard Version. 3. You may otherwise modify your copy of this Package in any way, provided that you insert a prominent notice in each changed file stating how and when you changed that file, and provided that you do at least ONE of the following: a) place your modifications in the Public Domain or otherwise make them Freely Available, such as by posting said modifications to Usenet or an equivalent medium, or placing the modifications on a major archive site such as uunet.uu.net, or by allowing the Copyright Holder to include your modifications in the Standard Version of the Package. b) use the modified Package only within your corporation or organization. c) rename any non-standard executables so the names do not conflict with standard executables, which must also be provided, and provide a separate manual page for each non-standard executable that clearly documents how it differs from the Standard Version. d) make other distribution arrangements with the Copyright Holder. 4. You may distribute the programs of this Package in object code or executable form, provided that you do at least ONE of the following: a) distribute a Standard Version of the executables and library files, together with instructions (in the manual page or equivalent) on where to get the Standard Version. b) accompany the distribution with the machine-readable source of the Package with your modifications. c) give non-standard executables non-standard names, and clearly document the differences in manual pages (or equivalent), together with instructions on where to get the Standard Version. d) make other distribution arrangements with the Copyright Holder. 5. You may charge a reasonable copying fee for any distribution of this Package. You may charge any fee you choose for support of this Package. You may not charge a fee for this Package itself. However, you may distribute this Package in aggregate with other (possibly commercial) programs as part of a larger (possibly commercial) software distribution provided that you do not advertise this Package as a product of your own. You may embed this Package's interpreter within an executable of yours (by linking); this shall be construed as a mere form of aggregation, provided that the complete Standard Version of the interpreter is so embedded. 6. The scripts and library files supplied as input to or produced as output from the programs of this Package do not automatically fall under the copyright of this Package, but belong to whoever generated them, and may be sold commercially, and may be aggregated with this Package. If such scripts or library files are aggregated with this Package via the so-called "undump" or "unexec" methods of producing a binary executable image, then distribution of such an image shall neither be construed as a distribution of this Package nor shall it fall under the restrictions of Paragraphs 3 and 4, provided that you do not represent such an executable image as a Standard Version of this Package. 7. C subroutines (or comparably compiled subroutines in other languages) supplied by you and linked into this Package in order to emulate subroutines and variables of the language defined by this Package shall not be considered part of this Package, but are the equivalent of input as in Paragraph 6, provided these subroutines do not change the language in any way that would cause it to fail the regression tests for the language. 8. Aggregation of this Package with a commercial distribution is always permitted provided that the use of this Package is embedded; that is, when no overt attempt is made to make this Package's interfaces visible to the end user of the commercial distribution. Such use shall not be construed as a distribution of this Package. 9. The name of the Copyright Holder may not be used to endorse or promote products derived from this software without specific prior written permission. 10. THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. The End Color-RGB-Util-0.609/lib/0000755000175000017500000000000014766414454012352 5ustar u1u1Color-RGB-Util-0.609/lib/Color/0000755000175000017500000000000014766414454013430 5ustar u1u1Color-RGB-Util-0.609/lib/Color/RGB/0000755000175000017500000000000014766414454014042 5ustar u1u1Color-RGB-Util-0.609/lib/Color/RGB/Util.pm0000644000175000017500000007025114766414454015322 0ustar u1u1package Color::RGB::Util; use 5.010001; use strict; use warnings; #use List::Util qw(min); use Exporter qw(import); our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY our $DATE = '2025-03-19'; # DATE our $DIST = 'Color-RGB-Util'; # DIST our $VERSION = '0.609'; # VERSION our @EXPORT_OK = qw( assign_rgb_color assign_rgb_dark_color assign_rgb_light_color hsl2hsv hsl2rgb hsv2hsl hsv2rgb int2rgb mix_2_rgb_colors mix_rgb_colors rand_rgb_color rand_rgb_colors reverse_rgb_color rgb2grayscale rgb2hsv rgb2hsl rgb2int rgb2sepia rgb_diff rgb_distance rgb_is_dark rgb_is_light rgb_luminance tint_rgb_color rgb_closest_to ); our %SPEC; my $re_rgb = qr/\A#?([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})\z/; sub _min { $_[0] < $_[1] ? $_[0] : $_[1]; } sub _wrap_h { my $h = shift; $h %= 360 if abs($h) > 360; $h >= 0 ? $h : 360+$h; } sub assign_rgb_color { require Digest::SHA; my ($str) = @_; my $sha1 = Digest::SHA::sha1_hex($str); substr($sha1, 0, 2) . substr($sha1, 18, 2) . substr($sha1, 38, 2); } sub assign_rgb_dark_color { my $str = shift; my $rgb = assign_rgb_color($str); rgb_is_dark($rgb) ? $rgb : mix_2_rgb_colors($rgb, '000000'); } sub assign_rgb_light_color { my $str = shift; my $rgb = assign_rgb_color($str); rgb_is_light($rgb) ? $rgb : mix_2_rgb_colors($rgb, 'ffffff'); } sub int2rgb { my $int = shift; return sprintf("%02x%02x%02x", ($int & 0xff0000) >> 16, ($int & 0x00ff00) >> 8, ($int & 0x0000ff), ); } sub mix_2_rgb_colors { my ($rgb1, $rgb2, $pct) = @_; $pct //= 0.5; my ($r1, $g1, $b1) = $rgb1 =~ $re_rgb or die "Invalid rgb1 color '$rgb1', must be in 'ffffff' form"; my ($r2, $g2, $b2) = $rgb2 =~ $re_rgb or die "Invalid rgb2 color '$rgb2', must be in 'ffffff' form"; for ($r1, $g1, $b1, $r2, $g2, $b2) { $_ = hex $_ } return sprintf("%02x%02x%02x", $r1 + $pct*($r2-$r1), $g1 + $pct*($g2-$g1), $b1 + $pct*($b2-$b1), ); } sub mix_rgb_colors { my (@weights, @r, @g, @b); while (@_ >= 2) { my ($rgb, $weight) = splice @_, 0, 2; my ($r, $g, $b) = $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; push @r, hex $r; push @g, hex $g; push @b, hex $b; push @weights, $weight; } my $tot_r = 0; for (0..$#r) { $tot_r += $r[$_]*$weights[$_] } my $tot_g = 0; for (0..$#g) { $tot_g += $g[$_]*$weights[$_] } my $tot_b = 0; for (0..$#b) { $tot_b += $b[$_]*$weights[$_] } my $tot_weight = 0; $tot_weight += $_ for @weights; die "Zero/negative total weight" unless $tot_weight > 0; return sprintf("%02x%02x%02x", $tot_r / $tot_weight, $tot_g / $tot_weight, $tot_b / $tot_weight, ); } $SPEC{rand_rgb_color} = { v => 1.1, summary => 'Generate a random RGB color', args_as => 'array', args => { from_color => { schema => 'color::rgb24', default => '000000', pos => 0, }, to_color => { schema => 'color::rgb24', default => 'ffffff', pos => 1, }, }, result_naked => 1, result => { schema => 'color::rgb24*', }, }; sub rand_rgb_color { my ($rgb1, $rgb2) = @_; $rgb1 //= '000000'; my ($r1, $g1, $b1) = $rgb1 =~ $re_rgb or die "Invalid rgb1 color '$rgb1', must be in 'ffffff' form"; $rgb2 //= 'ffffff'; my ($r2, $g2, $b2) = $rgb2 =~ $re_rgb or die "Invalid rgb2 color '$rgb2', must be in 'ffffff' form"; for ($r1, $g1, $b1, $r2, $g2, $b2) { $_ = hex $_ } return sprintf("%02x%02x%02x", $r1 + rand()*($r2-$r1+1), $g1 + rand()*($g2-$g1+1), $b1 + rand()*($b2-$b1+1), ); } sub rand_rgb_colors { my $opts = ref $_[0] eq 'HASH' ? shift : {}; my $num = shift // 1; my $light_color = exists($opts->{light_color}) ? $opts->{light_color} : 1; my $max_attempts = $opts->{max_attempts} // 1000; my $avoid_colors = $opts->{avoid_colors}; my $hash_prefix = $opts->{hash_prefix}; my $from_color = $opts->{from_color}; my $to_color = $opts->{to_color}; my $num_check = 10; my $min_distance = rgb_diff("000000", "ffffff", "approx2") / 2 / $num; my @res; while (@res < $num) { my $num_attempts = 0; my $rgb; while (1) { $rgb = rand_rgb_color($from_color, $to_color); my $reject = 0; REJECT: { if ($light_color) { do { $reject++; last } if rgb_is_dark($rgb); } elsif (defined $light_color) { do { $reject++; last } if rgb_is_light($rgb); } if ($avoid_colors && ref $avoid_colors eq 'ARRAY') { do { $reject++; last } if grep { $rgb eq $_ } @$avoid_colors; } if ($avoid_colors && ref $avoid_colors eq 'HASH') { do { $reject++; last } if $avoid_colors->{$rgb} } for (1..$num_check) { last if @res-$_ < 0; my $prev_rgb = $res[ @res - $_ ]; do { $reject++; last REJECT } if rgb_diff($rgb, $prev_rgb, "approx2") < $min_distance; } } # REJECT last if !$reject; last if ++$num_attempts >= $max_attempts; } push @res, ($hash_prefix ? "#" : "") . $rgb; } @res; } sub reverse_rgb_color { my ($rgb) = @_; my ($r, $g, $b) = $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; for ($r, $g, $b) { $_ = hex $_ } return sprintf("%02x%02x%02x", 255-$r, 255-$g, 255-$b); } sub rgb2grayscale { my ($rgb, $algo) = @_; my ($r, $g, $b) = $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; for ($r, $g, $b) { $_ = hex $_ } $algo //= 'average'; if ($algo eq 'weighted_average') { my $avg = int(0.299*$r + 0.587*$g + 0.114*$b); return sprintf("%02x%02x%02x", $avg, $avg, $avg); } elsif ($algo eq 'average') { my $avg = int(($r + $g + $b)/3); return sprintf("%02x%02x%02x", $avg, $avg, $avg); } else { die "Unknown algo '$algo'"; } } sub rgb2int { my $rgb = shift; # just to check $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; hex($rgb); } sub rgb2sepia { my ($rgb) = @_; my ($r, $g, $b) = $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; for ($r, $g, $b) { $_ = hex $_ } # reference: http://www.techrepublic.com/blog/howdoi/how-do-i-convert-images-to-grayscale-and-sepia-tone-using-c/120 my $or = ($r*0.393) + ($g*0.769) + ($b*0.189); my $og = ($r*0.349) + ($g*0.686) + ($b*0.168); my $ob = ($r*0.272) + ($g*0.534) + ($b*0.131); for ($or, $og, $ob) { $_ = 255 if $_ > 255 } return sprintf("%02x%02x%02x", $or, $og, $ob); } sub rgb_diff { my ($rgb1, $rgb2, $algo) = @_; $algo //= 'euclidean'; my ($r1, $g1, $b1) = $rgb1 =~ $re_rgb or die "Invalid rgb1 color '$rgb1', must be in 'ffffff' form"; my ($r2, $g2, $b2) = $rgb2 =~ $re_rgb or die "Invalid rgb2 color '$rgb2', must be in 'ffffff' form"; for ($r1, $g1, $b1, $r2, $g2, $b2) { $_ = hex $_ } my $dr2 = ($r1-$r2)**2; my $dg2 = ($g1-$g2)**2; my $db2 = ($b1-$b2)**2; if ($algo eq 'approx1' || $algo eq 'approx2') { my $rm = ($r1 + $r2)/2; if ($algo eq 'approx1') { return (2*$dr2 + 4*$dg2 + 3*$db2 + $rm*($dr2 - $db2)/256 )**0.5; } else { # approx2 if ($rm < 128) { return (3*$dr2 + 4*$dg2 + 2*$db2)**0.5; } else { return (2*$dr2 + 4*$dg2 + 3*$db2)**0.5; } } } elsif ($algo eq 'hsv_euclidean' || $algo eq 'hsv_hue1') { my $hsv1 = rgb2hsv($rgb1); my ($h1, $s1, $v1) = split / /, $hsv1; my $hsv2 = rgb2hsv($rgb2); my ($h2, $s2, $v2) = split / /, $hsv2; my $dh2 = ( _min(abs($h2-$h1), 360-abs($h2-$h1))/180 )**2; my $ds2 = ( $s2-$s1 )**2; my $dv2 = ( ($v2-$v1)/255.0 )**2; if ($algo eq 'hsv_hue1') { return (5*$dh2 + $ds2 + $dv2)**0.5; } else { # hsv_euclidean return ($dh2 + $ds2 + $dv2)**0.5; } } elsif ($algo eq 'euclidean') { return ($dr2 + $dg2 + $db2)**0.5; } else { die "Unknown algo '$algo'"; } } sub rgb_distance { my ($rgb1, $rgb2) = @_; my ($r1, $g1, $b1) = $rgb1 =~ $re_rgb or die "Invalid rgb1 color '$rgb1', must be in 'ffffff' form"; my ($r2, $g2, $b2) = $rgb2 =~ $re_rgb or die "Invalid rgb2 color '$rgb2', must be in 'ffffff' form"; for ($r1, $g1, $b1, $r2, $g2, $b2) { $_ = hex $_ } (($r1-$r2)**2 + ($g1-$g2)**2 + ($b1-$b2)**2)**0.5; } sub rgb_is_dark { my ($rgb) = @_; rgb_distance($rgb, "000000") < rgb_distance($rgb, "ffffff") ? 1:0; } sub rgb_is_light { my ($rgb) = @_; rgb_distance($rgb, "000000") > rgb_distance($rgb, "ffffff") ? 1:0; } sub _rgb_luminance { my ($r, $g, $b) = @_; 0.2126*$r/255 + 0.7152*$g/255 + 0.0722*$b/255; } sub rgb_luminance { my ($rgb) = @_; my ($r, $g, $b) = $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; for ($r, $g, $b) { $_ = hex $_ } return _rgb_luminance($r, $g, $b); } sub tint_rgb_color { my ($rgb1, $rgb2, $pct) = @_; $pct //= 0.5; my ($r1, $g1, $b1) = $rgb1 =~ $re_rgb or die "Invalid rgb1 color '$rgb1', must be in 'ffffff' form"; my ($r2, $g2, $b2) = $rgb2 =~ $re_rgb or die "Invalid rgb2 color '$rgb2', must be in 'ffffff' form"; for ($r1, $g1, $b1, $r2, $g2, $b2) { $_ = hex $_ } my $lum = _rgb_luminance($r1, $g1, $b1); return sprintf("%02x%02x%02x", $r1 + $pct*($r2-$r1)*$lum, $g1 + $pct*($g2-$g1)*$lum, $b1 + $pct*($b2-$b1)*$lum, ); } sub rgb2hsl { my ($rgb) = @_; my ($r, $g, $b) = $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; for ($r, $g, $b) { $_ = hex($_)/255 } my $max = $r; my $maxc = 'r'; my $min = $r; if ($g > $max) { $max = $g; $maxc = 'g'; } if ($b > $max) { $max = $b; $maxc = 'b'; } if ($g < $min) { $min = $g; } if ($b < $min) { $min = $b; } my ($h, $s, $l); if ($max == $min) { $h = 0; } elsif ($maxc eq 'r') { $h = 60 * (($g - $b) / ($max - $min)) % 360; } elsif ($maxc eq 'g') { $h = (60 * (($b - $r) / ($max - $min)) + 120); } elsif ($maxc eq 'b') { $h = (60 * (($r - $g) / ($max - $min)) + 240); } $l = ($max + $min) / 2; if ($max == $min) { $s = 0; } elsif($l <= .5) { $s = ($max - $min) / ($max + $min); } else { $s = ($max - $min) / (2 - ($max + $min)); } return sprintf("%.3g %.3g %.3g", $h, $s, $l); } sub rgb2hsv { my ($rgb) = @_; my ($r, $g, $b) = $rgb =~ $re_rgb or die "Invalid rgb color '$rgb', must be in 'ffffff' form"; for ($r, $g, $b) { $_ = hex($_)/255 } my $max = $r; my $maxc = 'r'; my $min = $r; if ($g > $max) { $max = $g; $maxc = 'g'; } if($b > $max) { $max = $b; $maxc = 'b'; } if($g < $min) { $min = $g; } if($b < $min) { $min = $b; } my ($h, $s, $v); if ($max == $min) { $h = 0; } elsif ($maxc eq 'r') { $h = 60 * (($g - $b) / ($max - $min)) % 360; } elsif ($maxc eq 'g') { $h = (60 * (($b - $r) / ($max - $min)) + 120); } elsif ($maxc eq 'b') { $h = (60 * (($r - $g) / ($max - $min)) + 240); } $v = $max; if($max == 0) { $s = 0; } else { $s = 1 - ($min / $max); } return sprintf("%.3g %.3g %.3g", $h, $s, $v); } sub hsl2hsv { my $hsl = shift; my ($h, $s, $l) = split / /, $hsl; $h>=0 && $h<=360 or $h = _wrap_h($h); $s>=0 && $s<=1 or die "Invalid S in HSL '$hsl', must be in 0-1"; $l>=0 && $l<=1 or die "Invalid L in HSL '$hsl', must be in 0-1"; my $_h = $h; my $_s; my $_v; $l *= 2; $s *= ($l <= 1) ? $l : 2-$l; $_v = ($l+$s) / 2; $_s = (2*$s) / ($l+$s); "$_h $_s $_v"; } sub hsv2hsl { my $hsv = shift; my ($h, $s, $v) = split / /, $hsv; $h>=0 && $h<=360 or $h = _wrap_h($h); $s>=0 && $s<=1 or die "Invalid S in HSV '$hsv', must be in 0-1"; $v>=0 && $v<=1 or die "Invalid V in HSV '$hsv', must be in 0-1"; my $_h = $h; my $_s = $s * $v; my $_l = (2-$s) * $v; $_s /= $_l <= 1 ? ($_l==0 ? 1 : $_l) : (2-$_l); $_l /= 2; "$_h $_s $_l"; } sub hsl2rgb { hsv2rgb(hsl2hsv(shift)); } sub hsv2rgb { my $hsv = shift; my ($h, $s, $v) = split / /, $hsv; $h>=0 && $h<=360 or $h = _wrap_h($h); $s>=0 && $s<=1 or die "Invalid S in HSV '$hsv', must be in 0-1"; $v>=0 && $v<=1 or die "Invalid V in HSV '$hsv', must be in 0-1"; my $i = int($h/60); my $f = $h/60 - $i; my $p = $v * (1-$s); my $q = $v * (1-$f*$s); my $t = $v * (1-(1-$f)*$s); my ($r, $g, $b); if ($i==0) { $r = $v; $g = $t; $b = $p; } elsif ($i==1) { $r = $q; $g = $v; $b = $p; } elsif ($i==2) { $r = $p; $g = $v; $b = $t; } elsif ($i==3) { $r = $p; $g = $q; $b = $v; } elsif ($i==4) { $r = $t; $g = $p; $b = $v; } else { $r = $v; $g = $p; $b = $q; } return sprintf("%02x%02x%02x", $r*255, $g*255, $b*255); } my $basic_colors = { black => "000000", blue => "0000ff", brown => "663333", cyan => "00ffff", # a.k.a. aqua green => "00ff00", grey => "808080", magenta => "ff00ff", # a.k.a. fuchsia orange => "ff8000", pink => "ffcccc", purple => "800080", # a.k.a. violet red => "ff0000", white => "ffffff", yellow => "ffff00", }; sub rgb_closest_to { my $opts = ref($_[0]) eq 'HASH' ? shift : {}; my $colors = $opts->{colors} // $basic_colors; my $rgb = shift; my $min_diff; my $closest_color; for my $colorname (sort keys %$colors) { my $diff = rgb_diff($rgb, $colors->{$colorname}, 'hsv_hue1'); if (!defined($min_diff) || $min_diff > $diff) { $closest_color = $colorname; $min_diff = $diff; } } $closest_color; } 1; # ABSTRACT: Utilities related to RGB colors __END__ =pod =encoding UTF-8 =head1 NAME Color::RGB::Util - Utilities related to RGB colors =head1 VERSION This document describes version 0.609 of Color::RGB::Util (from Perl distribution Color-RGB-Util), released on 2025-03-19. =head1 SYNOPSIS use Color::RGB::Util qw( assign_rgb_color assign_rgb_dark_color assign_rgb_light_color int2rgb mix_2_rgb_colors mix_rgb_colors rand_rgb_color rand_rgb_colors reverse_rgb_color rgb2grayscale rgb2int rgb2sepia rgb_closest_to rgb_diff rgb_distance rgb_is_dark rgb_is_light rgb_luminance tint_rgb_color ); say assign_rgb_color("foo"); # 0b5d33 say assign_rgb_dark_color("foo"); # 0b5d33 say assign_rgb_light_color("foo"); # 85ae99 say int2rgb(0xffffff); # ffffff say mix_2_rgb_colors('#ff0000', '#ffffff'); # pink (red + white) say mix_2_rgb_colors('ff0000', 'ffffff', 0.75); # pink with a whiter shade say mix_rgb_colors('ff0000', 1, 'ffffff', 1); # pink (red + white 1 : 1) say mix_rgb_colors('ff0000', 1, 'ffffff', 3); # pink with a whiter shade (red + white 1 : 3) say mix_rgb_colors('ff0000', 1, 'ffffff', 1, '0000ff', 0.5); # bluish pink say rand_rgb_color(); say rand_rgb_color('000000', '333333'); # limit range say rand_rgb_colors( {light_color => 1, avoid_colors=>[qw/ffffff ffcc00 ff00cc/], 3); # ("e9f3d7", "e0bbcc", "63f88c") say reverse_rgb_color('0033CC'); # => ffcc33 say rgb2grayscale('0033CC'); # => 555555 # default 'average' algo say rgb2grayscale('0033CC', 'weighted_average'); # => 353535 say rgb2int("ffffff"); # 16777215 (which is 0xffffff) say rgb2sepia('0033CC'); # => 4d4535 say rgb_closest_to('cc211e'); # => "red" say rgb_distance('000000', '000000') # => 0 say rgb_distance('01f000', '04f400') # => 5 say rgb_distance('ffff00', 'ffffff') # => 255 say rgb_diff('000000', '000000'); # => 0 say rgb_diff('01f000', '04f400'); # => 5 say rgb_diff('ffff00', 'ffffff'); # => 255 say rgb_diff('000000', '000000', 'approx1'); # => 0 say rgb_diff('01f000', '04f400', 'approx1'); # => 9.06 say rgb_diff('ffff00', 'ffffff', 'approx1'); # => 360.98 say rgb_is_dark('404040'); # => 1 say rgb_is_dark('a0a0a0'); # => 0 say rgb_is_light('404040'); # => 0 say rgb_is_light('a0a0a0'); # => 1 say rgb_luminance('d090aa'); # => ffcc33 say tint_rgb_color('#ff8800', '#0033cc'); # => b36e3c =head1 DESCRIPTION =head1 FUNCTIONS None are exported by default, but they are exportable. =head2 assign_rgb_color Usage: my $rgb = assign_rgb_color($str); Map a string to an RGB color. This is done by producing SHA-1 digest (160bit, 20 bytes) of the string, then taking the first, 10th, and last byte to become the RGB color. See also: L and L. =head2 assign_rgb_dark_color Like L except that it will make sure the assigned color is dark. =head2 assign_rgb_light_color Like L except that it will make sure the assigned color is light. =head2 hsl2hsv Usage: my $hsl = hsl2hsv("0 1 0.5"); # => "0 1 1" Convert HSL to HSV. See also: L. =head2 hsl2rgb Usage: my $rgb = hsl2rgb("0 1 0.5"); # => ff0000 Convert HSL to RGB. HSL should be given in a whitespace-separated H,S,L values e.g. "0 1 0.5". H (hue degree) has a range from 0-360 where 0 is red, 120 is green, 240 is blue and 360 is back to red. S (saturation) has a range from 0-1 where 0 is gray and 1 is fully saturated hue. L (lumination) has a range from 0-1 where 0 is fully black, 0.5 fully saturated, and 1 is fully white. See also L. =head2 hsv2hsl Usage: my $hsl = hsv2hsl("0 1 1"); # => "0 1 0.5" Convert HSV to HSL. See also L. =head2 hsv2rgb Usage: my $rgb = hsv2rgb("0 1 1"); # => ff0000 Convert HSV to RGB. HSV should be given in a whitespace-separated H,S,V values e.g. "0 1 1". H (hue degree) has a range from 0-360 where 0 is red, 120 is green, 240 is blue and 360 is back to red. S (saturation) has a range from 0-1 where 0 is gray and 1 is fully saturated hue. V (value) has a range from 0-1 where 0 is black and 1 is white. See also L. =head2 int2rgb Usage: my $rgb = int2rgb(0xffffff); # => ffffff Convert integer to RGB string. See also L. =head2 mix_2_rgb_colors Usage: my $mixed_rgb = mix_2_rgb_colors($rgb1, $rgb2, $pct); Mix 2 RGB colors. C<$pct> is a number between 0 and 1, by default 0.5 (halfway), the closer to 1 the closer the resulting color to C<$rgb2>. See also L, L. =head2 mix_rgb_colors Usage: my $mixed_rgb = mix_rgb_colors($color1, $weight1, $color2, $weight2, ...); Mix several RGB colors. See also L. =head2 rand_rgb_color Usage: my $rgb = rand_rgb_color([ $low_limit [ , $high_limit ] ]); Generate a random RGB color. You can specify the limit. Otherwise, they default to the full range (000000 to ffffff). See also L. =head2 rand_rgb_colors Usage: my @rgbs = rand_rgb_colors([ \%opts ], $num=1); Produce C<$num> random RGB colors, with some options. It does not (yet) create a palette of optimally distinct colors, but will make reasonable attempt to make the colors different from one another. Known options: =over =item * from_color RGB value, lower limit, optional. =item * to_color RGB value, high limit, optional. =item * light_color Boolean, default true. By default, this function will create light RGB colors, assuming the background color is dark, which is often the case in terminal. If this option is set to false, will create dark colors instead, If this option is set to undef, will create both dark and light colors. =item * avoid_colors Arrayref or hashref. List of colors to be avoided. You can put, for example, colors that you've already assigned/picked for your palette and don't want to use again. =item * max_attempts Uint, default 1000. Number of attempts to try generating the next random color if the generated color is rejected because it is light/dark, or because it's in C. When the number of attempts has been exceeded, the generated color is used anyway. =item * hash_prefix Whether to add hash prefix to produced color codes ("#123456") or not ("123456"). =back See also L. =head2 reverse_rgb_color Usage: my $reversed = reverse_rgb_color($rgb); Reverse C<$rgb>. =head2 rgb2grayscale Usage: my $rgb_gs = rgb2grayscale($rgb [ , $algo ]); Convert C<$rgb> to grayscale RGB value. There are several algorithms (C<$algo>) to choose from: =over =item * average The Average method takes the average value of R, G, and B as the grayscale value. Grayscale = (R + G + B ) / 3. The average method is simple but does not take into account the non-linearity of human vision (eyes are most sensitive to green, less to red, least to blue). =item * weighted_average This method gives weights to each of red, green, blue elements to take into account the sensitivity of human eyes. Grayscale = 0.299R + 0.587G + 0.114B =back See also L. =head2 rgb2hsl Usage: my $hsl = rgb2hsl($rgb); # example: "0 1 0.5" Convert RGB (0-255) to HSL. The result is a space-separated H, S, L values. See also L. =head2 rgb2hsv Usage: my $hsv = rgb2hsv($rgb); # example: "0 1 255" Convert RGB (0-255) to HSV. The result is a space-separated H, S, V values. See also L. =head2 rgb2int Usage: my $int = rgb2int("ffffff"); # => 16777216, which is 0xffffff Convert RGB string to integer. See also L. =head2 rgb2sepia Usage: my $rgb_sepia = rgb2sepia($rgb); Convert C<$rgb> to sepia tone RGB value. See also L. =head2 rgb_closest_to Usage: my $colorname = rgb_closest_to( [ \%opts , ] $color); Return the primary color C<$color> is closest to. Options: =over =item * colors A hash of color names and RGB values. If unspecified, the default is: { black => "000000", blue => "0000ff", brown => "663333", cyan => "00ffff", # a.k.a. aqua green => "00ff00", grey => "808080", magenta => "ff00ff", # a.k.a. fuchsia orange => "ff8000", pink => "ffcccc", purple => "800080", # a.k.a. violet red => "ff0000", white => "ffffff", yellow => "ffff00", } =back =head2 rgb_diff Usage: my $dist = rgb_diff($rgb1, $rgb2[ , $algo ]) Calculate difference between two RGB colors, using one of several algorithms. =over =item * euclidean The default. It calculates the distance as: ( (R1-R2)**2 + (G1-G2)**2 + (B1-B2)**2 )**0.5 which is the same as what L() would produce. =item * approx1 This algorithm, described in [1] as "a low cost approximation" and "a combination both weighted Euclidean distance functions, where the weight factors depend on how big the 'red' component of the colour is" with "results that are very close to L*u*v" and "a more stable algorithm", uses the following formula: ( 2*(R1-R2)**2 + 4*(G1-G2)**2 + 3*(B1-B2)**2 + Rm*((R1-R2)**2 - (B1-B2)**2)/256 )**0.5 where, Rm or "R mean" is (R1+R2)/2. =item * approx2 Like C, but uses this formula: ( 2*(R1-R2)**2 + 4*(G1-G2)**2 + 3*(B1-B2)**2 )**0.5 # if Rm < 128 ( 3*(R1-R2)**2 + 4*(G1-G2)**2 + 2*(B1-B2)**2 )**0.5 # otherwise =item * hsv_euclidean Convert the RGB values to HSV, then calculate the HSV distance. Please see source code for details. =item * hsv_hue1 Like C but puts more emphasis on hue difference. This algorithm is used, for example, by L when mapping RGB 24bit color to the "closest" the ANSI 256-color or 16-color. This algorithm tends to choose the hued colors instead of favoring to fallback on white/gray, which is more preferred. =back TODO: redmean low-cost approximation, CMC l:c. For more about color difference, try reading L. [1] https://www.compuphase.com/cmetric.htm See also L. =head2 rgb_distance Usage: my $dist = rgb_distance($rgb1, $rgb2) Calculate the euclidean RGB distance, using this formula: ( (R1-R2)**2 + (G1-G2)**2 + (B1-B2)**2 )**0.5 For example, the distance between "000000" and "ffffff" is ~441.67, while the distance between "ffff00" and "ffffff" is 255. See also L. =head2 rgb_is_dark Usage: my $is_dark = rgb_is_dark($rgb) Return true if C<$rgb> is a "dark" color, which is determined by checking if the RGB distance to "000000" is smaller than to "ffffff". See also L. =head2 rgb_is_light Usage: my $is_light = rgb_is_light($rgb) Return true if C<$rgb> is a "light" color, which is determined by checking if the RGB distance to "000000" is larger than to "ffffff". See also L. =head2 rgb_luminance Usage: my $luminance = rgb_luminance($rgb); Calculate standard/objective luminance from RGB value using this formula: (0.2126*R) + (0.7152*G) + (0.0722*B) where R, G, and B range from 0 to 1. Return a number from 0 to 1. =head2 tint_rgb_color Usage: my $new_rgb = tint_rgb_color($rgb, $tint_rgb, $pct) Tint C<$rgb> with C<$tint_rgb>. $pct is by default 0.5. It is similar to mixing, but the less luminance the color is the less it is tinted with the tint color. This has the effect of black color still being black instead of becoming tinted. See also L, L. =head1 HOMEPAGE Please visit the project's homepage at L. =head1 SOURCE Source repository is at L. =head1 SEE ALSO L =head1 AUTHOR perlancar =head1 CONTRIBUTOR =for stopwords Steven Haryanto Steven Haryanto =head1 CONTRIBUTING To contribute, you can send patches by email/via RT, or send pull requests on GitHub. Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via: % prove -l If you want to build the distribution (e.g. to try to install it locally on your system), you can install L, L, L, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me. =head1 COPYRIGHT AND LICENSE This software is copyright (c) 2025 by perlancar . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. =head1 BUGS Please report any bugs or feature requests on the bugtracker website L When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature. =cut Color-RGB-Util-0.609/META.json0000644000175000017500000005647614766414454013247 0ustar u1u1{ "abstract" : "Utilities related to RGB colors", "author" : [ "perlancar " ], "dynamic_config" : 0, "generated_by" : "Dist::Zilla version 6.032, CPAN::Meta::Converter version 2.150010", "license" : [ "perl_5" ], "meta-spec" : { "url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec", "version" : 2 }, "name" : "Color-RGB-Util", "prereqs" : { "configure" : { "requires" : { "ExtUtils::MakeMaker" : "0" } }, "develop" : { "requires" : { "Pod::Coverage::TrustPod" : "0", "Test::Perl::Critic" : "0", "Test::Pod" : "1.41", "Test::Pod::Coverage" : "1.08", "Test::Rinci" : "0.151" }, "x_spec" : { "Rinci" : "v1.1.102" } }, "runtime" : { "requires" : { "Digest::SHA" : "0", "Exporter" : "5.57", "perl" : "5.010001", "strict" : "0", "warnings" : "0" } }, "test" : { "requires" : { "File::Spec" : "0", "IO::Handle" : "0", "IPC::Open3" : "0", "Test::Exception" : "0", "Test::More" : "0.98", "Test::RandomResult" : "0" } } }, "provides" : { "Color::RGB::Util" : { "file" : "lib/Color/RGB/Util.pm", "version" : "0.609" } }, "release_status" : "stable", "resources" : { "bugtracker" : { "web" : "https://rt.cpan.org/Public/Dist/Display.html?Name=Color-RGB-Util" }, "homepage" : "https://metacpan.org/release/Color-RGB-Util", "repository" : { "type" : "git", "url" : "git://github.com/perlancar/perl-Color-RGB-Util.git", "web" : "https://github.com/perlancar/perl-Color-RGB-Util" } }, "version" : "0.609", "x_Dist_Zilla" : { "perl" : { "version" : "5.040000" }, "plugins" : [ { "class" : "Dist::Zilla::Plugin::PERLANCAR::CheckPendingRelease", "name" : "@Author::PERLANCAR/PERLANCAR::CheckPendingRelease", "version" : "0.001" }, { "class" : "Dist::Zilla::Plugin::GatherDir", "config" : { "Dist::Zilla::Plugin::GatherDir" : { "exclude_filename" : [], "exclude_match" : [], "follow_symlinks" : 0, "include_dotfiles" : 0, "prefix" : "", "prune_directory" : [], "root" : "." } }, "name" : "@Author::PERLANCAR/@Filter/GatherDir", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::PruneCruft", "name" : "@Author::PERLANCAR/@Filter/PruneCruft", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::ManifestSkip", "name" : "@Author::PERLANCAR/@Filter/ManifestSkip", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::MetaYAML", "name" : "@Author::PERLANCAR/@Filter/MetaYAML", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::License", "name" : "@Author::PERLANCAR/@Filter/License", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::PodCoverageTests", "name" : "@Author::PERLANCAR/@Filter/PodCoverageTests", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::PodSyntaxTests", "name" : "@Author::PERLANCAR/@Filter/PodSyntaxTests", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::ExtraTests", "name" : "@Author::PERLANCAR/@Filter/ExtraTests", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::ExecDir", "name" : "@Author::PERLANCAR/@Filter/ExecDir", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::ShareDir", "name" : "@Author::PERLANCAR/@Filter/ShareDir", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::MakeMaker", "config" : { "Dist::Zilla::Role::TestRunner" : { "default_jobs" : 1 } }, "name" : "@Author::PERLANCAR/@Filter/MakeMaker", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::Manifest", "name" : "@Author::PERLANCAR/@Filter/Manifest", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::ConfirmRelease", "name" : "@Author::PERLANCAR/@Filter/ConfirmRelease", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::ExecDir", "name" : "@Author::PERLANCAR/ExecDir script", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::PERLANCAR::BeforeBuild", "name" : "@Author::PERLANCAR/PERLANCAR::BeforeBuild", "version" : "0.610" }, { "class" : "Dist::Zilla::Plugin::Rinci::AbstractFromMeta", "name" : "@Author::PERLANCAR/Rinci::AbstractFromMeta", "version" : "0.10" }, { "class" : "Dist::Zilla::Plugin::PodnameFromFilename", "name" : "@Author::PERLANCAR/PodnameFromFilename", "version" : "0.02" }, { "class" : "Dist::Zilla::Plugin::PERLANCAR::EnsurePrereqToSpec", "config" : { "Dist::Zilla::Role::ModuleMetadata" : { "Module::Metadata" : "1.000038", "version" : "0.006" } }, "name" : "@Author::PERLANCAR/PERLANCAR::EnsurePrereqToSpec", "version" : "0.064" }, { "class" : "Dist::Zilla::Plugin::PERLANCAR::MetaResources", "name" : "@Author::PERLANCAR/PERLANCAR::MetaResources", "version" : "0.043" }, { "class" : "Dist::Zilla::Plugin::CheckChangeLog", "name" : "@Author::PERLANCAR/CheckChangeLog", "version" : "0.05" }, { "class" : "Dist::Zilla::Plugin::CheckMetaResources", "name" : "@Author::PERLANCAR/CheckMetaResources", "version" : "0.001" }, { "class" : "Dist::Zilla::Plugin::CheckSelfDependency", "config" : { "Dist::Zilla::Plugin::CheckSelfDependency" : { "finder" : [ ":InstallModules" ] }, "Dist::Zilla::Role::ModuleMetadata" : { "Module::Metadata" : "1.000038", "version" : "0.006" } }, "name" : "@Author::PERLANCAR/CheckSelfDependency", "version" : "0.011" }, { "class" : "Dist::Zilla::Plugin::Git::Contributors", "config" : { "Dist::Zilla::Plugin::Git::Contributors" : { "git_version" : "2.39.5", "include_authors" : 0, "include_releaser" : 1, "order_by" : "name", "paths" : [] } }, "name" : "@Author::PERLANCAR/Git::Contributors", "version" : "0.037" }, { "class" : "Dist::Zilla::Plugin::CopyrightYearFromGit", "name" : "@Author::PERLANCAR/CopyrightYearFromGit", "version" : "0.009" }, { "class" : "Dist::Zilla::Plugin::IfBuilt", "name" : "@Author::PERLANCAR/IfBuilt", "version" : "0.02" }, { "class" : "Dist::Zilla::Plugin::MetaJSON", "name" : "@Author::PERLANCAR/MetaJSON", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::MetaConfig", "name" : "@Author::PERLANCAR/MetaConfig", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::MetaProvides::Package", "config" : { "Dist::Zilla::Plugin::MetaProvides::Package" : { "finder_objects" : [ { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : "@Author::PERLANCAR/MetaProvides::Package/AUTOVIV/:InstallModulesPM", "version" : "6.032" } ], "include_underscores" : 0 }, "Dist::Zilla::Role::MetaProvider::Provider" : { "$Dist::Zilla::Role::MetaProvider::Provider::VERSION" : "2.002004", "inherit_missing" : 1, "inherit_version" : 1, "meta_noindex" : 1 }, "Dist::Zilla::Role::ModuleMetadata" : { "Module::Metadata" : "1.000038", "version" : "0.006" } }, "name" : "@Author::PERLANCAR/MetaProvides::Package", "version" : "2.004003" }, { "class" : "Dist::Zilla::Plugin::PERLANCAR::Authority", "name" : "@Author::PERLANCAR/PERLANCAR::Authority", "version" : "0.001" }, { "class" : "Dist::Zilla::Plugin::OurDate", "name" : "@Author::PERLANCAR/OurDate", "version" : "0.040" }, { "class" : "Dist::Zilla::Plugin::OurDist", "name" : "@Author::PERLANCAR/OurDist", "version" : "0.02" }, { "class" : "Dist::Zilla::Plugin::OurPkgVersion", "name" : "@Author::PERLANCAR/OurPkgVersion", "version" : "0.21" }, { "class" : "Dist::Zilla::Plugin::PodWeaver", "config" : { "Dist::Zilla::Plugin::PodWeaver" : { "finder" : [ ":InstallModules", ":PerlExecFiles" ], "plugins" : [ { "class" : "Pod::Weaver::Plugin::EnsurePod5", "name" : "@CorePrep/EnsurePod5", "version" : "4.020" }, { "class" : "Pod::Weaver::Plugin::H1Nester", "name" : "@CorePrep/H1Nester", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Name", "name" : "@Author::PERLANCAR/Name", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Version", "name" : "@Author::PERLANCAR/Version", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Region", "name" : "@Author::PERLANCAR/prelude", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Generic", "name" : "SYNOPSIS", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Generic", "name" : "DESCRIPTION", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Generic", "name" : "OVERVIEW", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Collect", "name" : "ATTRIBUTES", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Collect", "name" : "METHODS", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Collect", "name" : "FUNCTIONS", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Leftovers", "name" : "@Author::PERLANCAR/Leftovers", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Region", "name" : "@Author::PERLANCAR/postlude", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Completion::GetoptLongComplete", "name" : "@Author::PERLANCAR/Completion::GetoptLongComplete", "version" : "0.08" }, { "class" : "Pod::Weaver::Section::Completion::GetoptLongSubcommand", "name" : "@Author::PERLANCAR/Completion::GetoptLongSubcommand", "version" : "0.04" }, { "class" : "Pod::Weaver::Section::Completion::GetoptLongMore", "name" : "@Author::PERLANCAR/Completion::GetoptLongMore", "version" : "0.001" }, { "class" : "Pod::Weaver::Section::Homepage::DefaultCPAN", "name" : "@Author::PERLANCAR/Homepage::DefaultCPAN", "version" : "0.05" }, { "class" : "Pod::Weaver::Section::Source::DefaultGitHub", "name" : "@Author::PERLANCAR/Source::DefaultGitHub", "version" : "0.07" }, { "class" : "Pod::Weaver::Section::Bugs::DefaultRT", "name" : "@Author::PERLANCAR/Bugs::DefaultRT", "version" : "0.06" }, { "class" : "Pod::Weaver::Section::Authors", "name" : "@Author::PERLANCAR/Authors", "version" : "4.020" }, { "class" : "Pod::Weaver::Section::Contributors", "name" : "@Author::PERLANCAR/Contributors", "version" : "0.009" }, { "class" : "Pod::Weaver::Section::PERLANCAR::Contributing", "name" : "@Author::PERLANCAR/PERLANCAR/Contributing", "version" : "0.293" }, { "class" : "Pod::Weaver::Section::Legal", "name" : "@Author::PERLANCAR/Legal", "version" : "4.020" }, { "class" : "Pod::Weaver::Plugin::AppendPrepend", "name" : "@Author::PERLANCAR/AppendPrepend", "version" : "0.021" }, { "class" : "Pod::Weaver::Plugin::EnsureUniqueSections", "name" : "@Author::PERLANCAR/EnsureUniqueSections", "version" : "0.163250" }, { "class" : "Pod::Weaver::Plugin::SingleEncoding", "name" : "@Author::PERLANCAR/SingleEncoding", "version" : "4.020" }, { "class" : "Pod::Weaver::Plugin::PERLANCAR::SortSections", "name" : "@Author::PERLANCAR/PERLANCAR::SortSections", "version" : "0.082" } ] } }, "name" : "@Author::PERLANCAR/PodWeaver", "version" : "4.010" }, { "class" : "Dist::Zilla::Plugin::PruneFiles", "name" : "@Author::PERLANCAR/PruneFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::Pod2Readme", "name" : "@Author::PERLANCAR/Pod2Readme", "version" : "0.004" }, { "class" : "Dist::Zilla::Plugin::Rinci::AddPrereqs", "name" : "@Author::PERLANCAR/Rinci::AddPrereqs", "version" : "0.145" }, { "class" : "Dist::Zilla::Plugin::Rinci::AddToDb", "name" : "@Author::PERLANCAR/Rinci::AddToDb", "version" : "0.020" }, { "class" : "Dist::Zilla::Plugin::Rinci::EmbedValidator", "name" : "@Author::PERLANCAR/Rinci::EmbedValidator", "version" : "0.251" }, { "class" : "Dist::Zilla::Plugin::SetScriptShebang", "name" : "@Author::PERLANCAR/SetScriptShebang", "version" : "0.01" }, { "class" : "Dist::Zilla::Plugin::Test::Compile", "config" : { "Dist::Zilla::Plugin::Test::Compile" : { "bail_out_on_fail" : 0, "fail_on_warning" : "author", "fake_home" : 0, "filename" : "t/00-compile.t", "module_finder" : [ ":InstallModules" ], "needs_display" : 0, "phase" : "test", "script_finder" : [ ":PerlExecFiles" ], "skips" : [], "switch" : [] } }, "name" : "@Author::PERLANCAR/Test::Compile", "version" : "2.058" }, { "class" : "Dist::Zilla::Plugin::Test::Perl::Critic::Subset", "config" : { "Dist::Zilla::Plugin::Test::Perl::Critic::Subset" : { "finder" : [ ":ExecFiles", ":InstallModules", ":TestFiles" ] } }, "name" : "@Author::PERLANCAR/Test::Perl::Critic::Subset", "version" : "3.001.006" }, { "class" : "Dist::Zilla::Plugin::Test::Rinci", "name" : "@Author::PERLANCAR/Test::Rinci", "version" : "0.040" }, { "class" : "Dist::Zilla::Plugin::StaticInstall", "config" : { "Dist::Zilla::Plugin::StaticInstall" : { "dry_run" : 0, "mode" : "on" } }, "name" : "@Author::PERLANCAR/StaticInstall", "version" : "0.012" }, { "class" : "Dist::Zilla::Plugin::EnsureSQLSchemaVersionedTest", "name" : "@Author::PERLANCAR/EnsureSQLSchemaVersionedTest", "version" : "0.03" }, { "class" : "Dist::Zilla::Plugin::Acme::CPANModules::Blacklist", "name" : "@Author::PERLANCAR/Acme::CPANModules::Blacklist", "version" : "0.002" }, { "class" : "Dist::Zilla::Plugin::Prereqs::EnsureVersion", "name" : "@Author::PERLANCAR/Prereqs::EnsureVersion", "version" : "0.050" }, { "class" : "Dist::Zilla::Plugin::Prereqs::CheckCircular", "name" : "@Author::PERLANCAR/Prereqs::CheckCircular", "version" : "0.007" }, { "class" : "Dist::Zilla::Plugin::UploadToCPAN::WWWPAUSESimple", "name" : "@Author::PERLANCAR/UploadToCPAN::WWWPAUSESimple", "version" : "0.04" }, { "class" : "Dist::Zilla::Plugin::Prereqs", "config" : { "Dist::Zilla::Plugin::Prereqs" : { "phase" : "test", "type" : "requires" } }, "name" : "TestRequires", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::Prereqs", "config" : { "Dist::Zilla::Plugin::Prereqs" : { "phase" : "runtime", "type" : "requires" } }, "name" : "Prereqs", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::Prereqs", "config" : { "Dist::Zilla::Plugin::Prereqs" : { "phase" : "develop", "type" : "x_spec" } }, "name" : "DevelopX_spec", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":InstallModules", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":IncModules", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":TestFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":ExtraTestFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":ExecFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":PerlExecFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":ShareFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":MainModule", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":AllFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : ":NoFiles", "version" : "6.032" }, { "class" : "Dist::Zilla::Plugin::FinderCode", "name" : "@Author::PERLANCAR/MetaProvides::Package/AUTOVIV/:InstallModulesPM", "version" : "6.032" } ], "zilla" : { "class" : "Dist::Zilla::Dist::Builder", "config" : { "is_trial" : 0 }, "version" : "6.032" } }, "x_authority" : "cpan:PERLANCAR", "x_contributors" : [ "Steven Haryanto " ], "x_generated_by_perl" : "v5.40.0", "x_serialization_backend" : "Cpanel::JSON::XS version 4.38", "x_spdx_expression" : "Artistic-1.0-Perl OR GPL-1.0-or-later", "x_static_install" : 1 } Color-RGB-Util-0.609/MANIFEST0000644000175000017500000000045014766414454012734 0ustar u1u1# This file was automatically generated by Dist::Zilla::Plugin::Manifest v6.032. Changes LICENSE MANIFEST META.json META.yml Makefile.PL README dist.ini lib/Color/RGB/Util.pm t/00-compile.t t/01-basic.t t/author-critic.t t/author-pod-coverage.t t/author-pod-syntax.t t/release-rinci.t weaver.ini Color-RGB-Util-0.609/dist.ini0000644000175000017500000000075114766414454013253 0ustar u1u1;--------------------------------- author = perlancar copyright_holder = perlancar license = Perl_5 ;--------------------------------- version = 0.609 name = Color-RGB-Util [@Author::PERLANCAR] :version=0.610 [Prereqs / TestRequires] Test::Exception=0 Test::More=0.98 Test::RandomResult=0 [Prereqs] perl=5.010001 strict=0 warnings=0 Digest::SHA=0 Exporter=5.57 [Prereqs / DevelopX_spec] -phase=develop -relationship=x_spec Rinci=1.1.102 Color-RGB-Util-0.609/weaver.ini0000644000175000017500000000003614766414454013575 0ustar u1u1[@Author::PERLANCAR::NoRinci] Color-RGB-Util-0.609/t/0000755000175000017500000000000014766414454012047 5ustar u1u1Color-RGB-Util-0.609/t/01-basic.t0000644000175000017500000001507114766414454013537 0ustar u1u1#!perl use 5.010; use strict; use warnings; use Test::Exception; use Test::More 0.98; use Test::RandomResult; use Color::RGB::Util qw( assign_rgb_color assign_rgb_dark_color assign_rgb_light_color hsl2hsv hsl2rgb hsv2hsl hsv2rgb int2rgb mix_2_rgb_colors mix_rgb_colors rand_rgb_color rand_rgb_colors reverse_rgb_color rgb2grayscale rgb2hsl rgb2hsv rgb2int rgb2sepia rgb_diff rgb_distance rgb_is_dark rgb_is_light rgb_luminance tint_rgb_color ); subtest _wrap_h => sub { is(Color::RGB::Util::_wrap_h(0), 0); is(Color::RGB::Util::_wrap_h(1), 1); is(Color::RGB::Util::_wrap_h(-10), 350); is(Color::RGB::Util::_wrap_h(360), 360); is(Color::RGB::Util::_wrap_h(370), 10); is(Color::RGB::Util::_wrap_h(730), 10); is(Color::RGB::Util::_wrap_h(-360), 0); is(Color::RGB::Util::_wrap_h(-370), 350); }; subtest assign_rgb_color => sub { is(assign_rgb_color(""), "da5509"); is(assign_rgb_color("foo"), "0b5d33"); is(assign_rgb_color("baz"), "bb40a2"); }; subtest assign_rgb_dark_color => sub { is(assign_rgb_dark_color(""), "da5509"); is(assign_rgb_dark_color("foo"), "0b5d33"); is(assign_rgb_dark_color("baz"), "5d2051"); }; subtest assign_rgb_light_color => sub { is(assign_rgb_light_color(""), "ecaa84"); is(assign_rgb_light_color("foo"), "85ae99"); is(assign_rgb_light_color("baz"), "bb40a2"); }; subtest hsl2hsv => sub { is(hsl2hsv("0 1 0.5"), "0 1 1"); # red ff0000 is(hsl2hsv("120 1 0.5"), "120 1 1"); # green 00ff00 is(hsl2hsv("120 1 0.751"), "120 0.498 1"); # light green 80ff80 is(hsl2hsv("240 1 0.251"), "240 1 0.502"); # dark blue 000080 # test wrapping of h is(hsl2hsv("720 1 0.5"), "0 1 1"); # red ff0000 }; subtest hsv2hsl => sub { is(hsv2hsl("0 1 1"), "0 1 0.5"); # red ff0000 is(hsv2hsl("120 1 1"), "120 1 0.5"); # green 00ff00 is(hsv2hsl("120 0.498 1"), "120 1 0.751"); # light green 80ff80 is(hsv2hsl("240 1 0.502"), "240 1 0.251"); # dark blue 000080 # test wrapping of h is(hsv2hsl("720 1 1"), "0 1 0.5"); # red ff0000 }; subtest hsv2rgb => sub { is(hsv2rgb("0 1 1"), "ff0000"); is(hsv2rgb("120 0.498 1"), "80ff80"); is(hsv2rgb("240 1 0.502"), "000080"); # test wrapping of h is(hsv2rgb("720 1 1"), "ff0000"); }; subtest hsl2rgb => sub { is(hsl2rgb("0 1 0.5"), "ff0000"); is(hsl2rgb("120 1 0.751"), "80ff80"); is(hsl2rgb("240 1 0.251"), "000080"); # test wrapping of h is(hsl2rgb("720 1 0.5"), "ff0000"); }; subtest int2rgb => sub { is(int2rgb(0x000000), "000000"); is(int2rgb(0xffffff), "ffffff"); is(int2rgb(0xfa0000), "fa0000"); is(int2rgb(0x00af00), "00af00"); is(int2rgb(0x0000fa), "0000fa"); }; subtest mix_2_rgb_colors => sub { dies_ok { mix_2_rgb_colors('0', 'ffffff') }; is(mix_2_rgb_colors('#ff8800', '#0033cc'), '7f5d66'); is(mix_2_rgb_colors('ff8800', '0033cc', 0), 'ff8800'); is(mix_2_rgb_colors('FF8800', '0033CC', 1), '0033cc'); is(mix_2_rgb_colors('0033CC', 'FF8800', 0.75), 'bf7233'); is(mix_2_rgb_colors('0033CC', 'FF8800', 0.25), '3f4899'); }; subtest mix_rgb_colors => sub { dies_ok { mix_rgb_colors('0', 1) } 'invalid rgb -> dies'; dies_ok { mix_rgb_colors('000000', 0) } 'total weight zero #1 -> dies'; dies_ok { mix_rgb_colors('000000', 0) } 'total weight zero #2 -> dies'; is(mix_rgb_colors('#ff8800', 1, '#0033cc', 1), '7f5d66'); is(mix_rgb_colors('#ff8800', 2, '#0033cc', 1), 'aa6b44'); is(mix_rgb_colors('#ff8800', 1, '#0033cc', 2, '000000', 3), '2a2744'); }; subtest rand_rgb_color => sub { results_look_random { rgb2int(rand_rgb_color()) } between=>[0, 0xffffff]; }; subtest rand_rgb_colors => sub { my @vals = rand_rgb_colors(5); is(scalar(@vals), 5); results_look_random { rgb2int(rand_rgb_colors()) } between=>[0, 0xffffff]; }; subtest reverse_rgb_color => sub { is(reverse_rgb_color('0033CC'), 'ffcc33'); }; subtest rgb2grayscale => sub { is(rgb2grayscale('0033CC'), '555555'); is(rgb2grayscale('0033CC', 'weighted_average'), '353535'); dies_ok { rgb2grayscale('0033cc', 'foo') } 'unknown algo -> dies'; }; subtest rgb2hsl => sub { is(rgb2hsl("ff0000"), "0 1 0.5"); is(rgb2hsl("80ff80"), "120 1 0.751"); is(rgb2hsl("000080"), "240 1 0.251"); }; subtest rgb2hsv => sub { is(rgb2hsv("ff0000"), "0 1 1"); is(rgb2hsv("80ff80"), "120 0.498 1"); is(rgb2hsv("000080"), "240 1 0.502"); }; subtest rgb2int => sub { is(rgb2int('000000'), 0); is(rgb2int('ffffff'), 0xffffff); is(rgb2int('fa0000'), 0xfa0000); is(rgb2int('00af00'), 0x00af00); is(rgb2int('0000fa'), 0x0000fa); }; subtest rgb2sepia => sub { is(rgb2sepia('0033CC'), '4d4535'); }; subtest rgb_diff => sub { is(int(rgb_diff("000000","000000", "approx1")), 0); is(int(rgb_diff("00ff00","0000ff", "approx1")), 674); is(int(rgb_diff("ff0000","000000", "approx1")), 403); dies_ok { rgb_diff("000000","000000", "foo") } 'unknown algo -> dies'; }; subtest rgb_distance => sub { is(rgb_distance('000000', '000000'), 0); is(rgb_distance('01f000', '04f400'), 5); is(rgb_distance('ffff00', 'ffffff'), 255); }; subtest rgb_is_dark => sub { ok( rgb_is_dark('000000')); ok( rgb_is_dark('404040')); ok(!rgb_is_dark('a0a0a0')); ok(!rgb_is_dark('ffffff')); }; subtest rgb_is_light => sub { ok(!rgb_is_light('000000')); ok(!rgb_is_light('404040')); ok( rgb_is_light('a0a0a0')); ok( rgb_is_light('ffffff')); }; subtest rgb_luminance => sub { ok(abs(0 - rgb_luminance('000000')) < 0.001); ok(abs(1 - rgb_luminance('ffffff')) < 0.001); ok(abs(0.6254 - rgb_luminance('d090aa')) < 0.001); }; subtest tint_rgb_color => sub { is(tint_rgb_color('#ff8800', '#0033cc'), 'b36e3c'); is(tint_rgb_color('ff8800', '0033cc', 0), 'ff8800'); is(tint_rgb_color('FF8800', '0033CC', 1), '675579'); is(tint_rgb_color('0033CC', 'FF8800', 0.75), '263fad'); is(tint_rgb_color('0033CC', 'FF8800', 0.25), '0c37c1'); }; DONE_TESTING: done_testing(); Color-RGB-Util-0.609/t/author-critic.t0000644000175000017500000000072314766414454015013 0ustar u1u1#!perl BEGIN { unless ($ENV{AUTHOR_TESTING}) { print qq{1..0 # SKIP these tests are for testing by the author\n}; exit } } use strict; use warnings; # this test was generated with Dist::Zilla::Plugin::Test::Perl::Critic::Subset 3.001.006 use Test::Perl::Critic (-profile => "") x!! -e ""; my $filenames = ['lib/Color/RGB/Util.pm']; unless ($filenames && @$filenames) { $filenames = -d "blib" ? ["blib"] : ["lib"]; } all_critic_ok(@$filenames); Color-RGB-Util-0.609/t/author-pod-syntax.t0000644000175000017500000000045414766414454015645 0ustar u1u1#!perl BEGIN { unless ($ENV{AUTHOR_TESTING}) { print qq{1..0 # SKIP these tests are for testing by the author\n}; exit } } # This file was automatically generated by Dist::Zilla::Plugin::PodSyntaxTests. use strict; use warnings; use Test::More; use Test::Pod 1.41; all_pod_files_ok(); Color-RGB-Util-0.609/t/author-pod-coverage.t0000644000175000017500000000056714766414454016117 0ustar u1u1#!perl BEGIN { unless ($ENV{AUTHOR_TESTING}) { print qq{1..0 # SKIP these tests are for testing by the author\n}; exit } } # This file was automatically generated by Dist::Zilla::Plugin::PodCoverageTests. use strict; use warnings; use Test::Pod::Coverage 1.08; use Pod::Coverage::TrustPod; all_pod_coverage_ok({ coverage_class => 'Pod::Coverage::TrustPod' }); Color-RGB-Util-0.609/t/00-compile.t0000644000175000017500000000263714766414454014111 0ustar u1u1use 5.006; use strict; use warnings; # this test was generated with Dist::Zilla::Plugin::Test::Compile 2.058 use Test::More; plan tests => 1 + ($ENV{AUTHOR_TESTING} ? 1 : 0); my @module_files = ( 'Color/RGB/Util.pm' ); # no fake home requested my @switches = ( -d 'blib' ? '-Mblib' : '-Ilib', ); use File::Spec; use IPC::Open3; use IO::Handle; open my $stdin, '<', File::Spec->devnull or die "can't open devnull: $!"; my @warnings; for my $lib (@module_files) { # see L my $stderr = IO::Handle->new; diag('Running: ', join(', ', map { my $str = $_; $str =~ s/'/\\'/g; q{'} . $str . q{'} } $^X, @switches, '-e', "require q[$lib]")) if $ENV{PERL_COMPILE_TEST_DEBUG}; my $pid = open3($stdin, '>&STDERR', $stderr, $^X, @switches, '-e', "require q[$lib]"); binmode $stderr, ':crlf' if $^O eq 'MSWin32'; my @_warnings = <$stderr>; waitpid($pid, 0); is($?, 0, "$lib loaded ok"); shift @_warnings if @_warnings and $_warnings[0] =~ /^Using .*\bblib/ and not eval { +require blib; blib->VERSION('1.01') }; if (@_warnings) { warn @_warnings; push @warnings, @_warnings; } } is(scalar(@warnings), 0, 'no warnings found') or diag 'got warnings: ', ( Test::More->can('explain') ? Test::More::explain(\@warnings) : join("\n", '', @warnings) ) if $ENV{AUTHOR_TESTING}; Color-RGB-Util-0.609/t/release-rinci.t0000644000175000017500000000057314766414454014763 0ustar u1u1#!perl BEGIN { unless ($ENV{RELEASE_TESTING}) { print qq{1..0 # SKIP these tests are for release candidate testing\n}; exit } } # This file was automatically generated by Dist::Zilla::Plugin::Test::Rinci. use Test::More; eval "use Test::Rinci 0.01"; plan skip_all => "Test::Rinci 0.01 required for testing Rinci metadata" if $@; metadata_in_all_modules_ok(); Color-RGB-Util-0.609/README0000644000175000017500000003361514766414454012474 0ustar u1u1NAME Color::RGB::Util - Utilities related to RGB colors VERSION This document describes version 0.609 of Color::RGB::Util (from Perl distribution Color-RGB-Util), released on 2025-03-19. SYNOPSIS use Color::RGB::Util qw( assign_rgb_color assign_rgb_dark_color assign_rgb_light_color int2rgb mix_2_rgb_colors mix_rgb_colors rand_rgb_color rand_rgb_colors reverse_rgb_color rgb2grayscale rgb2int rgb2sepia rgb_closest_to rgb_diff rgb_distance rgb_is_dark rgb_is_light rgb_luminance tint_rgb_color ); say assign_rgb_color("foo"); # 0b5d33 say assign_rgb_dark_color("foo"); # 0b5d33 say assign_rgb_light_color("foo"); # 85ae99 say int2rgb(0xffffff); # ffffff say mix_2_rgb_colors('#ff0000', '#ffffff'); # pink (red + white) say mix_2_rgb_colors('ff0000', 'ffffff', 0.75); # pink with a whiter shade say mix_rgb_colors('ff0000', 1, 'ffffff', 1); # pink (red + white 1 : 1) say mix_rgb_colors('ff0000', 1, 'ffffff', 3); # pink with a whiter shade (red + white 1 : 3) say mix_rgb_colors('ff0000', 1, 'ffffff', 1, '0000ff', 0.5); # bluish pink say rand_rgb_color(); say rand_rgb_color('000000', '333333'); # limit range say rand_rgb_colors( {light_color => 1, avoid_colors=>[qw/ffffff ffcc00 ff00cc/], 3); # ("e9f3d7", "e0bbcc", "63f88c") say reverse_rgb_color('0033CC'); # => ffcc33 say rgb2grayscale('0033CC'); # => 555555 # default 'average' algo say rgb2grayscale('0033CC', 'weighted_average'); # => 353535 say rgb2int("ffffff"); # 16777215 (which is 0xffffff) say rgb2sepia('0033CC'); # => 4d4535 say rgb_closest_to('cc211e'); # => "red" say rgb_distance('000000', '000000') # => 0 say rgb_distance('01f000', '04f400') # => 5 say rgb_distance('ffff00', 'ffffff') # => 255 say rgb_diff('000000', '000000'); # => 0 say rgb_diff('01f000', '04f400'); # => 5 say rgb_diff('ffff00', 'ffffff'); # => 255 say rgb_diff('000000', '000000', 'approx1'); # => 0 say rgb_diff('01f000', '04f400', 'approx1'); # => 9.06 say rgb_diff('ffff00', 'ffffff', 'approx1'); # => 360.98 say rgb_is_dark('404040'); # => 1 say rgb_is_dark('a0a0a0'); # => 0 say rgb_is_light('404040'); # => 0 say rgb_is_light('a0a0a0'); # => 1 say rgb_luminance('d090aa'); # => ffcc33 say tint_rgb_color('#ff8800', '#0033cc'); # => b36e3c DESCRIPTION FUNCTIONS None are exported by default, but they are exportable. assign_rgb_color Usage: my $rgb = assign_rgb_color($str); Map a string to an RGB color. This is done by producing SHA-1 digest (160bit, 20 bytes) of the string, then taking the first, 10th, and last byte to become the RGB color. See also: "assign_rgb_dark_color" and "assign_rgb_light_color". assign_rgb_dark_color Like "assign_rgb_color" except that it will make sure the assigned color is dark. assign_rgb_light_color Like "assign_rgb_color" except that it will make sure the assigned color is light. hsl2hsv Usage: my $hsl = hsl2hsv("0 1 0.5"); # => "0 1 1" Convert HSL to HSV. See also: "hsv2hsl". hsl2rgb Usage: my $rgb = hsl2rgb("0 1 0.5"); # => ff0000 Convert HSL to RGB. HSL should be given in a whitespace-separated H,S,L values e.g. "0 1 0.5". H (hue degree) has a range from 0-360 where 0 is red, 120 is green, 240 is blue and 360 is back to red. S (saturation) has a range from 0-1 where 0 is gray and 1 is fully saturated hue. L (lumination) has a range from 0-1 where 0 is fully black, 0.5 fully saturated, and 1 is fully white. See also "rgb2hsl". hsv2hsl Usage: my $hsl = hsv2hsl("0 1 1"); # => "0 1 0.5" Convert HSV to HSL. See also "hsl2hsv". hsv2rgb Usage: my $rgb = hsv2rgb("0 1 1"); # => ff0000 Convert HSV to RGB. HSV should be given in a whitespace-separated H,S,V values e.g. "0 1 1". H (hue degree) has a range from 0-360 where 0 is red, 120 is green, 240 is blue and 360 is back to red. S (saturation) has a range from 0-1 where 0 is gray and 1 is fully saturated hue. V (value) has a range from 0-1 where 0 is black and 1 is white. See also "rgb2hsv". int2rgb Usage: my $rgb = int2rgb(0xffffff); # => ffffff Convert integer to RGB string. See also "rgb2int". mix_2_rgb_colors Usage: my $mixed_rgb = mix_2_rgb_colors($rgb1, $rgb2, $pct); Mix 2 RGB colors. $pct is a number between 0 and 1, by default 0.5 (halfway), the closer to 1 the closer the resulting color to $rgb2. See also "mix_rgb_colors", "tint_rgb_color". mix_rgb_colors Usage: my $mixed_rgb = mix_rgb_colors($color1, $weight1, $color2, $weight2, ...); Mix several RGB colors. See also "mix_2_rgb_colors". rand_rgb_color Usage: my $rgb = rand_rgb_color([ $low_limit [ , $high_limit ] ]); Generate a random RGB color. You can specify the limit. Otherwise, they default to the full range (000000 to ffffff). See also "rand_rgb_colors". rand_rgb_colors Usage: my @rgbs = rand_rgb_colors([ \%opts ], $num=1); Produce $num random RGB colors, with some options. It does not (yet) create a palette of optimally distinct colors, but will make reasonable attempt to make the colors different from one another. Known options: * from_color RGB value, lower limit, optional. * to_color RGB value, high limit, optional. * light_color Boolean, default true. By default, this function will create light RGB colors, assuming the background color is dark, which is often the case in terminal. If this option is set to false, will create dark colors instead, If this option is set to undef, will create both dark and light colors. * avoid_colors Arrayref or hashref. List of colors to be avoided. You can put, for example, colors that you've already assigned/picked for your palette and don't want to use again. * max_attempts Uint, default 1000. Number of attempts to try generating the next random color if the generated color is rejected because it is light/dark, or because it's in "avoid_colors". When the number of attempts has been exceeded, the generated color is used anyway. * hash_prefix Whether to add hash prefix to produced color codes ("#123456") or not ("123456"). See also "rand_rgb_color". reverse_rgb_color Usage: my $reversed = reverse_rgb_color($rgb); Reverse $rgb. rgb2grayscale Usage: my $rgb_gs = rgb2grayscale($rgb [ , $algo ]); Convert $rgb to grayscale RGB value. There are several algorithms ($algo) to choose from: * average The Average method takes the average value of R, G, and B as the grayscale value. Grayscale = (R + G + B ) / 3. The average method is simple but does not take into account the non-linearity of human vision (eyes are most sensitive to green, less to red, least to blue). * weighted_average This method gives weights to each of red, green, blue elements to take into account the sensitivity of human eyes. Grayscale = 0.299R + 0.587G + 0.114B See also rgb2sepia. rgb2hsl Usage: my $hsl = rgb2hsl($rgb); # example: "0 1 0.5" Convert RGB (0-255) to HSL. The result is a space-separated H, S, L values. See also "hsl2rgb". rgb2hsv Usage: my $hsv = rgb2hsv($rgb); # example: "0 1 255" Convert RGB (0-255) to HSV. The result is a space-separated H, S, V values. See also "hsv2rgb". rgb2int Usage: my $int = rgb2int("ffffff"); # => 16777216, which is 0xffffff Convert RGB string to integer. See also "int2rgb". rgb2sepia Usage: my $rgb_sepia = rgb2sepia($rgb); Convert $rgb to sepia tone RGB value. See also rgb2grayscale. rgb_closest_to Usage: my $colorname = rgb_closest_to( [ \%opts , ] $color); Return the primary color $color is closest to. Options: * colors A hash of color names and RGB values. If unspecified, the default is: { black => "000000", blue => "0000ff", brown => "663333", cyan => "00ffff", # a.k.a. aqua green => "00ff00", grey => "808080", magenta => "ff00ff", # a.k.a. fuchsia orange => "ff8000", pink => "ffcccc", purple => "800080", # a.k.a. violet red => "ff0000", white => "ffffff", yellow => "ffff00", } rgb_diff Usage: my $dist = rgb_diff($rgb1, $rgb2[ , $algo ]) Calculate difference between two RGB colors, using one of several algorithms. * euclidean The default. It calculates the distance as: ( (R1-R2)**2 + (G1-G2)**2 + (B1-B2)**2 )**0.5 which is the same as what "rgb_distance"() would produce. * approx1 This algorithm, described in [1] as "a low cost approximation" and "a combination both weighted Euclidean distance functions, where the weight factors depend on how big the 'red' component of the colour is" with "results that are very close to L*u*v" and "a more stable algorithm", uses the following formula: ( 2*(R1-R2)**2 + 4*(G1-G2)**2 + 3*(B1-B2)**2 + Rm*((R1-R2)**2 - (B1-B2)**2)/256 )**0.5 where, Rm or "R mean" is (R1+R2)/2. * approx2 Like "approx1", but uses this formula: ( 2*(R1-R2)**2 + 4*(G1-G2)**2 + 3*(B1-B2)**2 )**0.5 # if Rm < 128 ( 3*(R1-R2)**2 + 4*(G1-G2)**2 + 2*(B1-B2)**2 )**0.5 # otherwise * hsv_euclidean Convert the RGB values to HSV, then calculate the HSV distance. Please see source code for details. * hsv_hue1 Like "hsv_euclidean" but puts more emphasis on hue difference. This algorithm is used, for example, by Color::ANSI::Util when mapping RGB 24bit color to the "closest" the ANSI 256-color or 16-color. This algorithm tends to choose the hued colors instead of favoring to fallback on white/gray, which is more preferred. TODO: redmean low-cost approximation, CMC l:c. For more about color difference, try reading . [1] https://www.compuphase.com/cmetric.htm See also rgb_distance. rgb_distance Usage: my $dist = rgb_distance($rgb1, $rgb2) Calculate the euclidean RGB distance, using this formula: ( (R1-R2)**2 + (G1-G2)**2 + (B1-B2)**2 )**0.5 For example, the distance between "000000" and "ffffff" is ~441.67, while the distance between "ffff00" and "ffffff" is 255. See also rgb_diff. rgb_is_dark Usage: my $is_dark = rgb_is_dark($rgb) Return true if $rgb is a "dark" color, which is determined by checking if the RGB distance to "000000" is smaller than to "ffffff". See also "rgb_is_light". rgb_is_light Usage: my $is_light = rgb_is_light($rgb) Return true if $rgb is a "light" color, which is determined by checking if the RGB distance to "000000" is larger than to "ffffff". See also "rgb_is_dark". rgb_luminance Usage: my $luminance = rgb_luminance($rgb); Calculate standard/objective luminance from RGB value using this formula: (0.2126*R) + (0.7152*G) + (0.0722*B) where R, G, and B range from 0 to 1. Return a number from 0 to 1. tint_rgb_color Usage: my $new_rgb = tint_rgb_color($rgb, $tint_rgb, $pct) Tint $rgb with $tint_rgb. $pct is by default 0.5. It is similar to mixing, but the less luminance the color is the less it is tinted with the tint color. This has the effect of black color still being black instead of becoming tinted. See also mix_2_rgb_colors, mix_rgb_colors. HOMEPAGE Please visit the project's homepage at . SOURCE Source repository is at . SEE ALSO Color::ANSI::Util AUTHOR perlancar CONTRIBUTOR Steven Haryanto CONTRIBUTING To contribute, you can send patches by email/via RT, or send pull requests on GitHub. Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via: % prove -l If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me. COPYRIGHT AND LICENSE This software is copyright (c) 2025 by perlancar . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. BUGS Please report any bugs or feature requests on the bugtracker website When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature. Color-RGB-Util-0.609/Changes0000644000175000017500000000650014766414454013100 0ustar u1u10.609 2025-03-19 Released-By: PERLANCAR; Urgency: medium - Add Rinci metadata to some functions. 0.608 2025-03-19 Released-By: PERLANCAR; Urgency: medium - [func rand_rgb_colors] Add from_color, to_color arguments. 0.607 2023-12-12 Released-By: PERLANCAR; Urgency: medium - Add function: rgb_closest_to(). 0.606 2021-08-06 Released-By: PERLANCAR; Urgency: medium - [function rgb2grayscale] Add 'algo' argument, offer 'weighted_average' algorithm instead of the default 'average' method. (GH#4) - [ux] [function rgb_diff] Die if fed unknown algo instead of using default 'euclidean'. 0.605 2021-03-12 Released-By: PERLANCAR; Urgency: low - No functional changes. - [doc] Cross-reference more between functions. 0.604 2021-01-19 Released-By: PERLANCAR; Urgency: medium - rand_rgb_colors(): Add option 'hash_prefix'. 0.603 2021-01-19 Released-By: PERLANCAR; Urgency: low - No functional changes. - [doc] Add more description to the result of rand_rgb_colors(). 0.602 2021-01-19 Released-By: PERLANCAR; Urgency: medium - rand_rgb_colors(): Make sure that each generated color are distinct enough from several previous ones. - [doc] Give more description to the color difference algorithms. 0.601 2020-06-08 Released-By: PERLANCAR; Urgency: medium - [ux] Wrap H in input HSL/HSV. - [ux] Make sure we show invalid rgb value in error messages. 0.600 2020-06-07 Released-By: PERLANCAR; Urgency: medium - Add functions: hsl2{hsv,rgb}, hsv2{hsl,rgb}. 0.599 2019-08-20 Released-By: PERLANCAR; Urgency: medium - Add functions: rgb2hsl, rgb2hsv (stolen from Graphics-Color, reproduced here to avoid depending on Moose et al). - rgb_diff(): add algorithms approx2, hsv_euclidean, hsv_hue1. 0.598 2019-08-14 Released-By: PERLANCAR; Urgency: low - No functional changes. - [doc] rand_rgb_colors(): Document what happens when max_attempts is exceeded. 0.597 2019-07-17 Released-By: PERLANCAR; Urgency: low - No functional changes. - [test] Add tests for rand_rgb_color() and rand_rgb_colors(). 0.596 2019-07-17 Released-By: PERLANCAR; Urgency: medium - Add functions: rand_rgb_golors, rgb2int, int2rgb. 0.595 2019-02-13 Released-By: PERLANCAR - Add functions: assign_rgb_light_color, assign_rgb_dark_color. 0.594 2019-02-13 Released-By: PERLANCAR - Add function: assign_rgb_color. 0.593 2018-10-05 Released-By: PERLANCAR - No functional changes. - [build] Rebuild to fix repository URL. 0.592 2018-10-05 Released-By: PERLANCAR - Add mix_rgb_colors. 0.591 2018-10-04 Released-By: PERLANCAR - Add rgb_diff(). 0.590 2018-09-26 Released-By: PERLANCAR - Add functions: rgb_distance, rgb_is_dark, rgb_is_light. - [refactor] Factor out the regex pattern to a variable, it's slower but cleaner. - [doc] Format POD headings so they can be easily referred to. 0.58 2015-01-03 Released-By: PERLANCAR - No functional changes. - Rebuild (Generate TODO.md). 0.57 2014-12-05 Released-By: PERLANCAR - Rename module/dist from SHARYANTO-Color-Util to Color-RGB-Util. 0.56 2013-09-10 Released-By: SHARYANTO - No functional changes. Split from SHARYANTO-Utils to minimize dependencies (I'm trying to make Text::ANSITable work under Windows).