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 capabilities of the Color library are limited to pure 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 the RGB and HSL colours, this won’t matter. However, some colour models (like CIE L*a*b*) are not supported because Color does not yet support colour profiles, giving no meaningful way to convert colours in absolute colour spaces (like L*a*b*, XYZ) to non-absolute colour spaces (like RGB).
Color version 1.4.2 updates the release and install as a RubyGem to remove an unnecessary dependency, adds code climate analysis, and Travis CI support.
Color is the result of a project merge between color.rb 0.1.0 by Matt Lyon and color-tools 1.3 by Austin Ziegler. Please see History.txt for details on the changes this merge brings.
I value any contribution to Color you can provide: a bug report, a feature request, or code contributions.
Changes <strong>will not</strong> be accepted without tests.
Match my coding style.
Use a thoughtfully-named topic branch that contains your change. Rebase your commits into logical chunks as necessary.
Do not change the version number; when your patch is accepted and a release is made, the version will be updated at that point.
Submit a GitHub pull request with your changes.
New features require new documentation.
To run the test suite, you will need to install the development dependencies for Color. If you have Bundler, you can accomplish this easily:
$ bundle install
which runs the tests the same way that:
$ rake spec $ rake test $ rake travis
Here’s the most direct way to get your work merged into the project:
Fork the project.
Clone down your fork (+git clone git://github.com/<username>/color.git+).
Create a topic branch to contain your change (+git checkout -b my_awesome_feature+).
Hack away, add tests. Not necessarily in that order.
Make sure everything still passes by running `rake`.
If necessary, rebase your commits into logical chunks, without errors.
Push the branch up (+git push origin my_awesome_feature+).
Create a pull request against halostatue/color and describe what your change does and the why you think it should be merged.
Austin Ziegler created color-tools.
Matt Lyons created color.
This software is available under an MIT-style licence.
Copyright 2005–2013 Austin Ziegler, Matt Lyon, and other contributors
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 names of its contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
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.