The colour orange occurs between red and yellow in the visible spectrum at a wavelength of about 585 – 620 nm, and has a hue of 30° in HSV colour space. The complementary colour of orange is azure, a slightly greenish blue. Orange pigments are largely in the ochre or cadmium families, and absorb mostly blue light.

The colour is named after the orange fruit, introduced to Europe via the Sanskrit word nāranja. Before this was introduced to the English-speaking world, the colour was referred to (in Old English) as geoluhread, which translates into Modern English as yellow-red.

The first recorded use of orange as a colour name in English was in 1512,[1] in the court of King Henry VIII.

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