Hexadecimal color codes are used in all sorts of computer stuff - website designing, image programs...
The code can be seen as RRGGBB - where R is red, G is green, and B is the amount of blue. Values start at 0 for none, up to 9, then A, and up to F for the fullest. A value of FF0000 would return red. 00FF00 would return green. 0000FF would return blue. Mixing values will create all sorts of colors.
Here is a simple script I made to test and read your hexadecimal color code before you use it. This hexadecimal (hex) color reader (tester) should return the color in the box below. Otherwise your color does not exist.