The light that lights up our world and allows us to see that world is solar energy in what is known as the visible region of the Spectrum. Human vision is such that what appears as white light is really composed of weighted amounts of a continuum of so-called Black Body energy.
Tungsten lamps have a similar spectral distribution.
There is mounting evidence that this is an unhealthy environment. The encoded color signal from the camera does not convey any real wavelength information relative to the original hue. For example, if a predominantly orange color is imaged the red sensor will describe the light as some intensity of Red only. However, the green sensor will also image some part of this orange light and convey some intensity of what is essentially green light. This only works because the optical color filters are bandpass in nature and posses finite selectivity.