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If adding yellow to a grey makes it appear greenish what is a likely reason?

Answer and explanation

Correct answer: The grey already had a blue bias

The governing concept is hidden hue in a neutral mixture. Grey is often made from several pigments and may contain a slight blue bias that is not obvious by itself. When yellow is added, blue and yellow combine visually or physically toward green, so option B is the likely explanation. Hidden red would tend to push the result warmer, and excess white affects lightness rather than specifically creating green. Yellow is not the relevant complementary explanation here.

Related tags

GreyBlue BiasYellowHidden HueGreenish NeutralColour MixingColour TheoryArt Education

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