Isaac Newton is an English physicist and mathematician; his work was influential in many key areas, which include the law of motion, the law of gravity and his contribution to optic. In 1672 he published the theory on spectrum of light. In this experiment He passed a beam of sunlight to a glass prism, which refracted light to the opposite wall producing beautiful and vivid colours. He noticed that colours separating due to some hue refracted more than others eg: blue more so than red. His theory showed that light alone is responsible for colour. Colour is the result of light and not in the glass. He developed conceptual arrangements of colours in which artisan use as primary and secondary. The light that we see as white is a mixture of all the colours of the visible spectrum.