Notes from a talk on use of colour in science and how current methods are fairly inaccessible.
NB. Saying colour-blind is somewhat derogatory (also generally incorrect because achromatopsia is super-rare), so the better way is colour-vision impaired or, perhaps, spectrally-challenged.
Colour vision impairment simulators: www.vischeck.com http://colororacle.org
This site seems to have lots of different information and tools, but is also extremely chaotic: mkweb.bcgsc.ca/colorblind