n8thegreat

its called hexadecimal. hexadecimal, in case you dont know, is a base 16 numbering system in which there is 0-9, and then A-F. its often used in programming because you can easily convert it to binary and back.
the first two are red, the second two ar green, and the last two are blue. since there are sixteen different values, that makes 256 different values for red, green, and blue. which then opens up million of combinations with all 6 values combined. 0 - 255 are the values you can put in if you are using rgb: rgb(255, 128, 60). hexadecimal is just a different way of writing it.

so to explaine why #FFFFFF is white, it jsut means that red, green, and blue are all set to show at their maximum values, which in turn makes the whole color white. in contrast, #000000 is black because all are set to the minimum value which means no presence of the color. if you wanted to make red you would do #FF0000 because you want all red to show, and none of the other colors. you would make green by doing #00FF00, and blue by doing #0000FF. you can mix in different values and all that to make the different colors.

you could break it down, so for each pair, the first number gets you into a ballpark range, and the second number narrows it down.
so 6A, means i want the value that is direcly in the middle of 6 and 7. 60 would mean i wanted it at exactly 6, and 6F would mean i want it not wuite at 7, but just about dead on.
you could think of it as being, 6.5, 6.0, and 6.9 respectively. but of course, there are 16 values, not 10.

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