Getting to Know CSS - Learn to Code HTML and CSS: Develop and Style Websites - page 41

Keyword Colors
Keyword color values are names (such as red , green , or blue ) that map to a given color.
These keyword names and their corresponding colors are determined by the CSS specific-
ation. Most common colors, along with a few oddities, have keyword names. A complete
list of these keyword names can be found within the CSS specification ( http://www.w3.org/
TR/css3-color/ ) , and a few of the more common keyword color values are listed in Figure
3.1 .