In the Century Charles Bargue, along with Jean-Léon Gérôme, made art prints for art students to copy. Search for "Bargue plates" for many examples. The entire course was also reprinted recently and can be bought from bookstores.
The Art of Color Coordination. This infographic discuss about color coordination and how you can use this to your advantage when designing your website. Good color choices should never be neglected in web design. A bad color combination can have the same