[handonam]

Would that mean the RGB values change in the future?

It would go from 0-F to 0-K wouldn't it?

so... #KKK = white? ;(

[raverbashing]

Hilarious, but no, that's not how it's going to work

You get a number in front of ff from 0 to 3, so 3ff is the maximum instead of ff

[huuu]

A lot of software already use normalized RGB.

rgb(1.0, 1.0, 1.0) == white

[StavrosK]

And the idea is that you specify as many decimals as you need there?

[huuu]

Yes but that's an interface problem.

Ofcourse you can't provide more decimals than the number of bits used by the float.

EDIT:

  0.999 * 255 (8 bit) = 255
  0.9999 * 255 (8 bit) = 255
  0.999 * 4096 (12 bit) = 4092
  0.9999 * 4096 (12 bit) = 4096

So for lower color depths the number of decimals isn't that important.

[mojuba]

Look up CSS-color level 4. It supports non-integer arguments for rgb() and rgba() which supposedly solves the problem, though in a bit ugly way, because the total range is still 0..255.