tell me about colour?

Answer 1

Color or colour (see spelling differences) is the visual perceptual property corresponding in humans to the categories called red, yellow, white, etc. Color derives from the spectrum of light (distribution of light energy versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors. Color categories and physical specifications of color are also associated with objects, materials, light sources, etc., based on their physical properties such as light absorption, reflection, or emission spectra.

Typically, only features of the composition of light that are detectable by humans (wavelength spectrum from 400 nm to 700 nm, roughly) are included, thereby objectively relating the psychological phenomenon of color to its physical specification. Because perception of color stems from the varying sensitivity of different types of cone cells in the retina to different parts of the spectrum, colors may be defined and quantified by the degree to which they stimulate these cells. These physical or physiological quantifications of color, however, do not fully explain the psychophysical perception of color appearance.

The science of color is sometimes called chromatics. It includes the perception of color by the human eye and brain, the origin of color in materials, color theory in art, and the physics of electromagnetic radiation in the visible range (that is, what we commonly refer to simply as light).

Answer 2

BUY the book "The history of the pallet" by Victoria Finley. This will be the most interesting book on color and how we evolved to the paint we use today.
for instance did you know that many of the old master pieces in museums have a color called "Mummy Brown" that was made from ground up dead people? Ugh, but true.
Did you know that England invented pencils and had the only graphite source for years, and killed anyone going near the mine?
That the source of red dyes and paint was a closely guarded secret by Spain for 200 years and they killed anyone who tried to find out where they stuff came from in the new world.
That this red substance, the blood of a Beatle that grows on cactus in Mexico is used in food dyes today, like ham and cherry coke?
Did you know that a red flower is not red but vibrating or "just being red" and that if you look closely in the right light the color flashes in and out.
I tell you if you really want to know about color read that book.

Answer 3

Color is perceived in a context and is relational. Look up Joseph Albers on Google. Get a copy of Art And Visual Perception, By Rudolph Arnhiem.

There is a very interesting article about color perception in the May 1959 issue of Scientific American. The article is authored by Edwin Land, who invented Polaroid photography. It is a MUST READ article for any artist.

Answer 4

colour is a fancy way to write color

Answer 5

Tell me about electromagnetic specturm.