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complementary colour

British  

noun

  1. one of any pair of colours, such as yellow and blue, that give white or grey when mixed in the correct proportions

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Since the main character is red, I chose green – the complementary colour – for the pigs, who have stolen the birds’ eggs and are sheltering in the structures.

From The Guardian • Feb. 23, 2016

Let the complementary colour be its auxiliary, and not its rival.”

From Needlework As Art by Alford, Marianne Margaret Compton Cust, Viscountess

Blue, as the complementary colour to yellow, is here absorbed, and hence the more energetic action of the blue rays.

From Fragments of science, V. 1-2 by Tyndall, John

A complementary colour, in its strictest sense, may be described as the colour which, combined with the colour whose complement is required, makes up white.

From Colour Measurement and Mixture by Abney, W. de W.

Like the colour itself, the complementary colour can always be expressed either by a single ray of the spectrum, or by white light from which a single ray is deducted.

From Colour Measurement and Mixture by Abney, W. de W.