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primary color

Art. a color, as red, yellow, or blue, that in mixture yields other colors.
Optics. any of a set of monochromatic colors, as red, green, and blue, that are added to match or specify the chromaticity of a stimulus or sample.
Origin of primary color
1605-15 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for primary color
Historical Examples
  • The juxtaposition of a primary color, for example, with a secondary made of the other two primaries.

    Color Value C. R. Clifford
  • They usually contain a mixture of a primary color common to both.

    Philippine Mats Hugo H. Miller
  • Both these experiments may be made with the primary color wheel or color top.

    Elementary Color Milton Bradley
  • Among the mellow pigments of the Roman canvas she was a glaring splotch of primary color.

    The Title Market Emily Post
  • As a primary color, it is much more rarely seen in nature than either red or yellow.

primary color in Science
primary color  
Any of a group of colors from which all other colors can be made by mixing. See more at additive, subtractive. See Note at color.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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