Expressing colors through the combination of the red, green, and blue hexadecimal values.
Three sections valued from 00 to FF (the hexadecimal values of each color).

The first two digits are the amount of red in the color.
The second two digits are the amount of green in the color.
The third two digits are the amount of blue in the color.

• 000000=Black
• FFFFFF=White
• FF0000=Red
• 00FF00=Green
• 0000FF=Blue

A useful online tool for determining the hexadecimal codes for rgb colors: RGB to Hex Converter
Enter a number (between 0 and 255) for each color section to get the hex code.
NOTE: This tool works for ALL rgb colors, not just the Web-safe ones.