All colored materials, except white-colored and black-colored
materials, reflects or emits its own color of light while the other
parts of the spectrum are absorbed.
White-colored and black-colored materials are exceptions
because, white-colored materials reflects all the colors or all the
parts of the visible spectrum because white's composition is all
the colors and, black-colored materials absorb all the colors while
reflecting none because black is merely the absence of any color
although black is sometimes described as a color. In other words,
white is composed of all the parts of the visible spectrum that is
why white-colored materials reflect all the light. In the other
hand, black do not reflect any color or any part of the visible
spectrum but absorb all of it because black is the absence of
spectral light or simply the absence of light.