The 6-number-and/or-letter combinations are actually 3 pairs of values
where RR, GG, BB are the hexadecimal digits specifying the Red, Green, and Blue values of the color. This value is written as #RRGGBB. The number values range from 0 - 9; letter values range from A to F.
Here is an example of a Hexadecimal Color Code:
< FONT COLOR="#0000FF">Here is some example text I want to color< /FONT >
The above line of code will display the example text in blue like this:
Here is some example text I want to color
A Color Name is used in this format:
< FONT COLOR="blue">Here is some example text I want to color< /FONT >
The above line of code will display the example text in blue like this:
Here is some example text I want to color
Both methods are perfectly legitimate methods of defining HTML colors but the Hexadecimal Color Code system will give you a much wider range of possible color choices.