Taken from http://selfhtml.teamone.de/helferlein/farben.htm
Foreground color:
Enter on the left values between 0 and 255. As an alternative you can also click on one of the colors from the table below.
red:
green:
blue:
Background color:
Enter on the left values between 0 and 255. As an alternative you can also click on one of the colors from the table below.
red:
green:
blue:
Click the button to show the color in the frame on the right and to calculate the HEX values below
Resulting HEX values:
Foreground:
Background: