Code for a color, in hexadecimal (
[0-9A-Fa-f]) notation. The code is comprised of three pieces, which signify the level of red, green, and blue in the color. Each of these pieces is either a 2-digit number from 00 to 99, or a 2-letter combination from AA to FF. Absence of a color is 00 or AA; the maximum concentration of a color is 99 or FF. For example, pure red can be denoted as 990000, 99AAAA, FF0000, and so on. Green is 00FF00 and blue is 0000FF. The Web has several great resources for getting the RGB value of colors; for example, see www.hypersolutions.org/pages/rgbhex.html.