Evocative definitions of colors in Webster's Third New International Dictionary and how they got there. [more inside]
How language affects our perception of colour...(SYTL) more on the 'linguistic relativity hypothesis' here and here
Do you see what I see? Do people always see the same thing when they look at colours?
"We certainly cannot follow the example of Odysseus and, going down to Hades, tempt with a bowl of blood a representative sample of native speakers to label particular areas of the standard Munsell color continuum ..."David Wharton's Latin Color Bibliography collects quotations from ancient literature and modern research on how languages classify colors, and tries to work out the meanings of color words in classical Latin. [more inside]
International Color Idioms. Hundreds of international idioms that mention color, with literal English translations as well as meanings. From this page, which also has an interesting essay on colors and language. (via)
A picture of English nouns is a map of 33,000 English nouns. Each tiny rectangle corresponds to a noun. The color of the rectangle has been assigned a color, based on an internet image search for that noun. The words are clustered so that similar words are near each other. Gallery. (Java required)