Alberti color diagramThe art and science of colour theory, at Colour Museum:

Do you know Isaac Newton’s Theory of Colour? Or maybe Goethe’s? We present you with a total of 59 easy-to-understand, richly illustrated colour theories from the Antiquity to modern times: in short, a complete cultural history of colour written by Prof. Narciso Silvestrini and Prof. Ernst Peter Fischer.

Via Proceedings of the Athanasius Society
Whence via BibliOdyssey