An online interactive introduction to Colour Theory hosted at Brown University is a valuable online resource.
Information on both electronic and pigment-based colour theory, colour mixing models and colour contrast theories are covered. Also included on the site is a bibliography of books on colour theory.
The technology that drives the site is Java applets so the user can explore various aspects colour theory by interaction and discover for themselves aspects of colour theory. Try it out you will see what I mean.
Thanks for the link goes to Linn of the Embroideress.
