Ill CS2 & complementary color
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- jirkap0
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Teri Pettit - 4:07pm Mar 23, 07 PST (#1 of 1) Edited: 23-Mar-2007 at 04:08pmThe Complement command in the Color palette just converts to HSB, adds or subtracts 180 from the H value, and then converts back to the document's color mode. The trouble is that the HSB scale used in the color sliders does not correspond to most artist's intuition of what a color wheel looks like. A very large fraction of the wheel is devoted to greens, for example, and red is opposite cyan, which artists don't usually think of as the complement of red.
Kuler also uses an HSB color wheel, but the hues have been scaled so that the colors opposite each other are more like those used in artist's color wheels, where red is opposite from green, blue is opposite from orange, and yellow is opposite from violet. Many of the colors that are opposite each other on this scaled wheel will therefore have hue numbers in the HSB scale will that are not exactly 180 degrees apart.
This scaled wheel was copied by Kuler from Illustrator, where it has been used ever since AI 8 in the Brush options Hue Shift colorization method. The hue shift colorization method moves each color in the brush art by the same angular distance that exists between the brush's "key color" and the current assigned stroke color, and when it is moving colors by those angular distances, it is moving them around the scaled artistic hue wheel, not around the "raw" HSB values.
It will be used by more stuff in CS3, but you'll have to wait to see what.