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	Color enriches our lives as a natural, visual experience. Understanding color can help you use it more effectively. To see color, three essential elements must be present: light, an illuminated object, and an observer.
	The colors we see are affected by the intensity of light and by its spectral content. At low levels of illumination, objects are less colorful. In bright daylight, we see more color, contrast, and saturation.
	The color spectrum shows the range of wavelengths of energy that are visible to the human eye. Variation in wavelengths alters the colors we see. As Isaac Newton showed with his prisms, white light is a mixture of all the colors of the visible spectrum.

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