Once you've started using CSS layouts for your Web designs, you may notice something odd about the way the colors are defined. Rather than the standard 6-character long code after the pound sign (#cc99ff), instead you see just three characters (#c9f). This is called color shorthand and it takes advantage of the fact that the browser-safe Web palette uses triplets that are always doubled. In other words, each color triplet is made of 3 pairs of characters 0-f (base 16), and with browser-safe colors they are doubled. So, to write color shorthand, you simply remove the duplicate character.
For example:
- White is written
#fff - Black is written
#000 - Red is
#f00 - Green is
#0f0 - Blue is
#00f
and so on...
