Table of the 216 usual colors and their "#RRGGBB" values (Source: The JavaScript Source)
Standard 216 Color Palette
Houser's RGB2HEX DHTML App
NOTE:
Click on any item of the pallet of the 216 colors to obtain the specific values
of the triplet (R, G, B) [Red, Green, Blue] and the hexdecimal code associated with item.