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 1.8 adds an alpha parameter to all <tt>#css_rgba</tt> calls, fixes a bug exposed by new constant lookup semantics in Ruby 2, and ensures that <tt>Color.equivalent?</tt> can only be called on Color instances. Barring bugs introduced in this release, this (really) is the last version of color that supports Ruby 1.8, so make sure that your gem specification is set properly (to <tt>~> 1.8</tt>) if that matters for your application. This version will no longer be supported one year after the release of color 2.0.

Critical or Security advisories for 1.8

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Changelog for 1.8

/ 2015-10-26

  • 1 minor enhancement:

    • Add an optional alpha parameter to all #css_rgba calls. Thanks to Luke Bennellick (@bennell) and Alexander Popov (@AlexWayfer) for independently implemented submissions. Merged from #15.

  • 2 minor bug fixes:

    • Improve constant detection to prevent incorrectly identified name collisions with various other libraries such as Azure deployment tools. Based on work by Matthew Draper (@matthewd) in #24.

    • Prevent Color.equivalent? comparisons from using non-Color types for comparison. Fix provided by Benjamin Guest (@bguest) in #18.

  • 1 governance change

Dependencies for 1.8

Name Requirement Status
This version doesn't have runtime dependencies.

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