What Is Color?

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can produce the sensation of other colors in our
eyes, such as aqua and purple. (Challoner,40)
Why do we see the grass as green in color? Why do we not see the
grass as blue or any other color? Actually, when the visible light hits a
pigment only some colors are reflected back to the eye. (Encarta) Which
colors are reflected and absorbed vary with the different pigments in the
object. Grass is green because all the other colors in the visible
spectrum are absorbed, and green is reflected back to our eyes. If blue
was reflected back to our eyes instead of green then the grass would appear
to be blue. The same rule applies with all other colors of the spectrum
and objects that contain pigments. White is seen when all the colors of
the visible spectrum are reflected back to the eye. Black is seen when the
whole visible spectrum is absorbed and no color is reflected back to the
eye. At night, everything seems black or deep blue; however, in the
daytime vivid color is ...

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