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Whether black is a colour is debatable. Unlike colours which are created from the reflection of different wavelengths of light, black is created from the absorption of light. Designer Wayne Hemingway tells the story of Vantablack - the blackest black created which, unlike other blacks, absorbs all but a tiny (less than 0.04%) of light. Anish Kapoor has bought exclusive rights to the black. First broadcast on Owning Colour, 11 October 2017.