Put mouse over buttons to change background colors
black Green Seagreen Red Almond purple burgandy magenta fusia pink navy blue white Color
skyblue cyan brown coral teal tan orange gold yellow cream gray lightgray white Selector
Works with most browsers 

http://www.lynda.com/hexh.html - Color Chart #1

http://www.lwalumni.org/color-chart.html - Color Chart #2 (Potts)