Sample Accessible Palette Evaluator
http://accessibility.oit.ncsu.edu/tools/color-contrast/accessible-color-palette.php?&colors=cc0000,000000,ffffff,383838,666666,CCCCCC,E1E1E1,5C5541,666633,556677,A20000,A79574,C5BD9D,E5E1D0,778855,99AA77,CCDDAA,67849C,CC9900
