Color is a Ruby library to provide basic RGB, CMYK, HSL, and other colourspace manipulation support to applications that require it. It also provides 152 named RGB colours (184 with spelling variations) that are commonly supported in HTML, SVG, and X11 applications. A technique for generating monochromatic contrasting palettes is also included. The Color library performs purely mathematical manipulation of the colours based on colour theory without reference to colour profiles (such as sRGB or Adobe RGB). For most purposes, when working with RGB and HSL colour spaces, this won't matter. Absolute colour spaces (like CIE L*a*b* and XYZ) and cannot be reliably converted to relative colour spaces (like RGB) without colour profiles. Color version 1.6 primarily adds a colour matching method for RGB and experimental CIE L*a*b* and XYZ conversion methods for use with the colour matching method. Barring bugs introduced in this release, this is the last version of color that supports Ruby 1.8, so make sure that your gem specification is set properly (to <tt>~> 1.6</tt>) if that matters for your application.

installgem install color -v 1.6

Austin Ziegler, Matt Lyon

551,458 total downloads 6,121 for this version




gem 'color', '~> 1.6'
  1. 1.7.1 July 17, 2014 (47.5 KB)
  2. 1.7 June 13, 2014 (47.5 KB)
  3. 1.6 May 20, 2014 (47 KB)
  4. 1.5.1 January 28, 2014 (43 KB)
  5. 1.4.2 July 1, 2013 (39.5 KB)
Show all versions (9 total)
Ruby Dependency
  1. >= 0