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README.md

Build Status Gem Version

A Ruby implementation of HSLuv.

Demo

Demo

Demo link: http://www.hsluv.org/syntax/#006925

Installation

Add this line to your application's Gemfile:

gem 'hsluv'

And then execute:

$ bundle

Or install it yourself as:

$ gem install hsluv

Usage

  • hue is a float between 0 and 360
  • saturation is a float between 0 and 100
  • lightness is a float between 0 and 100
  • hex is the hexadecimal format of the color
  • red is a float between 0 and 1
  • green is a float between 0 and 1
  • blue is a float between 0 and 1

Hsluv::hsluv_to_hex(hue, saturation, lightness) -> color as a hex string

Hsluv.hsluv_to_hex(12.177, 100, 53.23)
=> #ff0000

Hsluv::hsluv_to_rgb(hue, saturation, lightness) -> color as rgb

Hsluv.hsluv_to_rgb(12.177, 100, 53.23)
=> [0.9998643703868711, 6.849859221502719e-14, 8.791283550555612e-06]

Hsluv::hex_to_hsluv(hex) -> list of floats as defined above

Hsluv.hex_to_hsluv("#ff0000")
=> [12.177050630061776, 100.0000000000022, 53.23711559542933]

Hsluv::rgb_to_hsluv(rgb) -> list of floats as defined above

Hsluv.rgb_to_hsluv(0.99, 6.84e-14, 8.79e-16)
=> [12.17705063006216, 100.00000000000209, 52.711595266911985]

For HPLuv (the pastel variant), use:

  • hpluv_to_hex
  • hpluv_to_rgb
  • hex_to_hpluv
  • rgb_to_hpluv

Testing

Run rspec spec/.

Contributing

  1. Fork it ( https://github.com/hsluv/hsluv-ruby/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

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Ruby implementation of HSLuv (revision 3)

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