hex notation -- some of them even think in it -- and so it's part of the CSS specification. Why? Because the specification was written and edited by programmers. It makes sense that they'd put in color schemes to which they could relate.
So, by stringing together three hex pairs, you can set a color. A more generic description of this method is:
#RRGGBB
Viewed in this way, the hex-pair method is a lot like the method we