colors | IE
Colors recognized by Internet Explorer
Internet Explorer supports a wide variety of named colors. Not all browsers support these additional named colors; therefore, when specifying color values for Web pages targeted to work across different browsers, use the RGB color values.

http://msdn2.microsoft.com/en-us/library/ms531197.aspx

http://msdn2.microsoft.com/en-us/library/aa358802.aspx
Swatch | List | Palette | 140 colors