Awesome

Lua implementation of HSLuv (revision 4), courtesy of Mark Wonnacott.

Installation

Copy the hsluv.lua file directly into your project or install from luarocks:

luarocks install hsluv

Usage

> hsluv = require 'hsluv'
> = hsluv.hex_to_hsluv('#123456')
248.60320341681 85.43201417605  21.04172364179
> = hsluv.husl_to_hex({248.60, 85.43, 21.04})
#123456
> = hsluv.rgb_to_hsluv({0.07, 0.20, 0.33})
248.49244211716 85.009956491035 20.58410610897
> = hsluv.hsluv_to_rgb({248.49, 85.00, 20.58})
0.070014042122372   0.19996570399156   0.32991848455264

For HPLuv, use hex_to_hpluv, hpluv_to_hex, rgb_to_hpluv and hpluv_to_rgb.

License

Copyright (C) 2019 Alexei Boronine

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.