CHANGELOG.md CODE_OF_CONDUCT.md CONTRIBUTING.md CONTRIBUTORS.md LICENCE.md Manifest.txt README.md Rakefile SECURITY.md lib/color.rb lib/color/cielab.rb lib/color/cmyk.rb lib/color/grayscale.rb lib/color/hsl.rb lib/color/rgb.rb lib/color/rgb/colors.rb lib/color/version.rb lib/color/xyz.rb lib/color/yiq.rb licences/dco.txt test/fixtures/cielab.json test/minitest_helper.rb test/test_cmyk.rb test/test_color.rb test/test_grayscale.rb test/test_hsl.rb test/test_rgb.rb test/test_yiq.rb