Absorption of light
Absorption of light is when light does not pass through or bounce off a material. The wavelengths absorbed are usually defined by the material’s color. A good example is a chess board. However, there is no black wavelength, so how could you be seeing the black squares? When you shine light on a black colored object, like the chess board, the atoms of the black paint on it absorb the photons of the light,which is why you see black.
When you ‘see’ an object, you are seeing the light waves that are not absorbed. Black, as a color, absorbs all wavelengths of light. This makes it very good at absorbing EM waves. A rough black surface reflects almost no light. On the other hand, something that is 'green' absorbs all wavelengths but green, so it appears green. This works for all colors and shades of things. A transparent object does not absorb any light. A colored transparent object lets light through, but only light of a certain wavelength, such as red or dark blue. The rest is absorbed.