ColorUtils

Small java library containing some helper methods to work with color and
accessibility (A11Y). The primary goal for this library was to provide a
method to return a color which is well readable on a given background color.
Or, given a text-color, find a "good" background-color.

Implementation

The first algorithm implemented is based on a W3C recommendation. As this
recommendation was based on the websafe color palette, the results are not
always satisfactory.

After a bit of research, I found two alternative algorithms based on
Luminosity and Luminosity contrast. LuminosityContrast seemed to yield the
most acceptable results, so this one is implemented by default.

There is also a method to determine whether a color combination is readable or
not. Using this method you can specify the difference algorithm and adapt the
colors appropriately.

Disclaimer

Many parameters are still hardcoded and could be made accessible externally.
But so far I did not yet have the need to change these values dynamically, so
I did not implement them as such.

Example Usage

::

import lu.albert.colorutils.ColorA11Y;
Color textColor = ColorA11Y.getReadableComplement(
    myTextComponent.getBackground());
myTextComponent.setForeground(textColor);