You should get used to specifying colors as hex strings like #FF8AC5. This works for HTML, and for a lot of the other web programming we will do. See the CS559 Color Tutorial for a discussion. But basically read #FF8AC5 as 3 hexidecimal numbers (FF,8A,C5) that are the amount of red, green and blue. Each number is a binary fraction, so that FF means FF/FF (or 255/255) or 100% (of red in this case).

Here are some boxes for you to color:

Although, this is a very verbose way to make boxes. Try experimenting with changing their colors.