The light from such objects that strikes our eyes (whose color we perceive) is composed of those wavelengths that the object DID NOT absorb.įor example, plant leaves contain two photosynthetic pigments: chlorophyll A and chlorophyll B. Often objects appear colored because of their absorption of light within selective regions of the visible spectrum. Light comprising a specific wavelength within this range is perceived by the brain as being 'colored': Samples of light that contain a continuous spectrum of all wavelengths between 400-750nm will be perceived by the brain as 'white light' (e.g. The human eye responds to electromagnetic radiation within a range of wavelengths between 400-750 nm (i.e.
