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Change a color to its inverse or complement
- Select
the color you want to change.
- In
the Color panel, select an option from the panel menu:
- Invert
- Changes
each component of a color to the opposite value on the color scale.
For example, if an RGB color has an R value of 100, the Invert command
will change the R value to 155 (255 – 100 = 155).
- Complement
- Changes
each component of a color to a new value based on the sum of the
highest and lowest RGB values in the selected color. Illustrator
adds the lowest and highest RGB values of the current color, and
then subtracts the value of each component from that number to create
new RGB values. For example, suppose you select a color with an
RGB value of 102 for red, 153 for green, and 51 for blue. Illustrator
adds the high (153) and low (51) values, to end up with a new value
(204). Each of the RGB values in the existing color is subtracted
from the new value to create new complementary RGB values: 204 – 102
(the current red value) = 102 for the new red value, 204 – 153 (the
current green value) = 51 for the new green value, and 204 – 51
(the current blue value) = 153 for the new blue value.
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PDF (adobe.com)
