New article on the history of color in art (from artsy.net)
A brief history of color in art (click link to read article)
I actually have a nice sized library of books on color - here are few of the titles that are still available (via amazon.com). There are many others, in particular, ones that discuss only a certain color (blue for example), but these are a great place to get started on learning about color.
Color: A Natural History of the Palette
The Brilliant History of Color in Art
Interaction of Color (Albers)
Pantone: the Twentieth Century in Color
Colors: The Story of Dyes and Pigments