This java library (among several others, certainly) provides color schemes for data viz, including the ColorBrewer schemes<p><a href="http:&#x2F;&#x2F;www.dishevelled.org&#x2F;color-scheme&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.dishevelled.org&#x2F;color-scheme&#x2F;</a>