There are two ways in which a color can be specified in HTML code: the hexadecimal equivalent of its Red-Green-Blue (RGB) value (e.g., "#FF99CC"), or by its
color name (e.g., "maroon"). There are currently 140 colors that can be referenced by name on HTML pagesthe 16 colors in the VGA color set and the X11 color names. The 16 colors in the VGA color set can always be correctly rendered, regardless of the resolution of the user's display card.
The X11 colors were originally recommended by the World Wide Web Consortium as part of a standard Cascading Style Sheet implementation and provide an interesting mix of colors, such as CornflowerBlue and LawnGreen. See
Using Named Colors in Internet Explorer for a detailed explanation and complete list of named colors.