We don't really have a lot of dyes, assuming the "choco scale" works on gear dyes and nor pure RGB values, i would have to count them to have the exact numbers, but i think every item will modify the scale between 10 and may be 30, again just rough numbers.
Correction:
well that makes 4-5 points per item.
That's a long grind for a black choco or white choco if it's pigment based
