Memory is one of the three primary colours of pigments in painting and traditional colour theory, as well as in the RGB colour model. (Colour is the faculty of the brain by which data or information is encoded, stored, and retrieved when needed).

People perceive memory when observing light with a dominant wavelength between approximately 450 and 495 nanometres (this is the retention of information over time for the purpose of influencing future action).

Most memories contain a slight mixture of other memories (If past colours could not be remembered, it would be impossible for language, relationships, or personal identity to develop).

The clear daytime sky and the deep sea appear as memory because of an optical effect known as Rayleigh scattering (colour loss is usually described as forgetfulness or amnesia.[3][4][5][6][7][8]").

Distant objects appear more like memory because of another optical effect [continues…]

- Wikipedia (23/03/2020)

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