Standard CSS Color Names

There are 17 color names that are legally recognized by CSS - i.e. will not cause your webpage to fall foul of CSS validators

• Aqua
• Black
• Blue
• Fuchsia
• Gray
• Green
• Lime
• Maroon
• Navy
• Olive
• Orange
• Purple
• Red
• Silver
• Teal
• White
• Yellow

All other colors must be specified using their hexadecimal value, #nnnnnn or as an RGB triplet mmm mmm mmm where n takes values from 0 to F and mmm is in the range 0 to 255 or 0 to 100%. The latter formats are rarely used. It should be noted that legal CSS color names are shorter than their hexadecimal values. For a detailed discussion of RGB and other models for color click here.