possible colors used for html

1#FF0000 means FF worth of Red, and no Green or Blue. The result is RED.
2
3#0000FF means no Red or Green, and FF worth of Blue. The result is BLUE.
4
5#FFFF00 means FF worth of Red and Green, and Blue. The result is YELLOW.
6
7#000000 means no Red, Green, or Blue. The result is BLACK.
8
9#FFFFFF means full FF amounts of Red, Green, and Blue. The result is WHITE.
10
11#FFEFD5 has high values for all colors, giving a light result: PAPAYAWHIP.
12   (no, I don't know who thought up the color names.)
13
14#556B2F has lower values for all colors, giving a darker result: DARKOLIVEGREEN.
15
16 

1#FFEFD5 (PAPAYAWHIP)   and
2
3#556B2F (DARKOLIVEGREEN)
4
5...are not web safe colors. They would get shifted to
6
7#FFFFCC (NOT PAPAYAWHIP)   and
8
9#666633 (NOT DARKOLIVEGREEN)

1<!-- Here are some easy ones -->
2#ffffff #ff0000 #00ff00 #0000ff #ff