What is a simple way to reduce colour intensity?

Correct answer: Mixing grey or complementary colour

Correct answer: D, mixing grey or a complementary colour. Colour intensity, also called saturation or strength, describes how vivid or dull a colour appears. Adding grey usually makes a colour less vivid. Adding a suitable complementary colour can also neutralise or dull it because the opposing colour reduces the original colour’s visual strength when mixed. The result depends on the materials and the amount used, so only a little should be added at a time. A is wrong because adding a brighter colour normally increases vividness rather than reducing it. B is wrong because changing paper may affect the appearance, but it is not the direct mixing method asked for. C is wrong because erasing a line changes a drawing mark, not the intensity of a mixed colour. Memory cue: more grey or complement generally means less saturation.