The Wonderful Color Wheel: Part 1 on http://imprint.printmag.com
Chevreul's Principles of Harmony and Contrast of Colors
gutenberg-e.org Moses Harris, Prismatic colors,  Mimicking the spread of light from a source, Harris places the pure colors at the center of his circle and the lightest at the outer edge. In the late 18th century, Moses Harris elaborated on the Newtonian color wheel by charting not only pure colors, but the various shades of those colors as well.
Miroco Machiko Red Pepper, 2008
Your Color Palette: Cool undertone = Cool Colours; Warm undertone = Warm Colours; Neutral Undertone = Cool and Warm Colours
米津祐介のホームページ Yuske Yonezu
-- Japanese translation version -- 最低限覚えておきたいWEB配色の基本２大原理と６つの配色パターン http://bazubu.com/colorpttn-2507.html?utm_source=feedburner_medium=feed_campaign=Feed%3A+bazubu%2Ffeed+%28%E3%83%90%E3%82%BA%E9%83%A8%29#