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colour pickers
- “Colors for data scientists. Generate and refine palettes of optimally distinct colors” http://tools.medialab.sciences-po.fr/iwanthue/
- colour picker using the Munsell color system » http://colorusage.arc.nasa.gov/ColorTool_appletMac.html
procedural colour schemes
NASA
- “USING COLOR IN INFORMATION DISPLAY GRAPHICS” > http://colorusage.arc.nasa.gov/
food colouring
other
- “preview a set of linear interpolated equidistant colors.” http://vis4.net/labs/185
- Adobe's interactive, online colour-scheme picker > http://kuler.adobe.com/
- “Why Programmers suck at Picking Colors” > http://www.betaversion.org/~stefano/linotype/news/108/
nik