color name from hex code example
Example: possible colors used for html
#FF0000 means FF worth of Red, and no Green or Blue. The result is RED.
#0000FF means no Red or Green, and FF worth of Blue. The result is BLUE.
#FFFF00 means FF worth of Red and Green, and Blue. The result is YELLOW.
#000000 means no Red, Green, or Blue. The result is BLACK.
#FFFFFF means full FF amounts of Red, Green, and Blue. The result is WHITE.
#FFEFD5 has high values for all colors, giving a light result: PAPAYAWHIP.
(no, I don't know who thought up the color names.)
#556B2F has lower values for all colors, giving a darker result: DARKOLIVEGREEN.