Is color just an illusion or is there actually color?

The truth is, we do not live in a world of colored objects. The color of things is actually in the light that shines upon them. Light is the only source of color, and without light not even the faintest color exists.
Because various substances called pigments absorb certain wavelengths of light and reflect others. What is reflected back to the eye appears as the color of the object. Grass looks green, for example, because the pigments in it absorb all the wavelengths of sunlight except green, which is reflected back to us. When all wavelengths of light are absorbed, an object looks black. This would happen, for instance, if you were to shine only yellow or red light on a blue towel. Since the towers pigment reflects only blue and there is no blue in yellow or red light, the towel would absorb all the yellow or red light and appear black. Rather than a color, therefore, black is the absence of color. You will not get the same results, however, from mixing paints. This is because, in this instance, you are mixing pigments that reflect light rather than mixing lights of different colors.

Color helps us to gather and process information. Color affects our emotions. Color can help us remember important concepts. Color is a loving gift from our Creator to help us enjoy life.
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