prizm-0.3.1.2: README.org

* Welcome!
  [[https://hackage.haskell.org/package/prizm][https://img.shields.io/hackage/v/prizm.svg?style=flat]]
  [[https://travis-ci.org/ixmatus/prizm][https://travis-ci.org/ixmatus/prizm.svg?branch=master]]

  `prizm` is a Haskell library for computing with colors. Specifically
  providing functions for transforming between different color spaces,
  interpolating colors and adjusting the tint, shade, hue, or
  lightness or a color.

  My inspiration for writing this was Sass and Bourbon, both implement
  interesting functions for computing with colors for use in
  stylesheets and I wanted the same thing for use in [[http://fvisser.nl/clay/][Clay]].

** Colour Module
   There is some overlap with the Haskell Colour Module that already
   exists; however, this library is filling a couple of needs the
   other doesn't satisfy. Primarily transformations and color
   mutations in the CIE L*Ch space.

** Supported Algorithms
   - sRGB <-> CIE XYZ
   - CIE XYZ <-> CIE L\*ab
   - CIE L\*ab <-> CIE L\*Ch

** Supported Functions
   - Color interpolation
   - Tinting / Darkening
   - Lightness
   - Hue
   - Chroma/Saturation

   All of these functions operate on color within the CIE L\*Ch
   representation. The percentage values may range between -100
   and 100.

[[http://www.brucelindbloom.com/index.html?Info.html][General Color Formulas, Data, and Algorithms]]
[[http://rip94550.wordpress.com/2011/07/04/color-cielab-and-tristimulus-xyz/][CIE Conversion Mathematics]]
[[http://www.easyrgb.com/index.php?X=MATH&H=01][Conversion Algorithm Sources]]
[[https://github.com/mikeemoo/ColorJizz-PHP/blob/master/src/MischiefCollective/ColorJizz/ColorJizz.php][Good list of useful color manipulation formulas]]