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- only six values each for red, green and blue are used
- [6 reds x 6 greens x 6 blues =] 216 tones
- 0, 51, 102, 153, 204, 255.
That means some limitations in subtlety, but for everyday purposes 216 is still a lot of colours - you can see them all in Beverly Voth's brilliant display HERE .
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