Charts
The best, scientific information about color, and your beauty code can be found at this website, I've met this author, and used her book!
Need info about color, Hue, Tint, Shade and Tone??? this is a very helpful site, great downloads:
http://www.color-wheel-artist.com/hue.html
Swarovski's Color Charts
Swarovski's Crystal Color Chart - number identification included