what is color

see Wikipedia: About Colors. Color is an important part of human expression.

Color or colour is the visual perceptual property corresponding in humans to the categories called red, yellow, blue and others. 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 380 nm to 740 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).

references : http://en.wikipedia.org
recent article about color inside wikipedia:
Physics of color:
-Spectral colors
-Color of objects

Color perception
-Development of theories of color vision.
-Color in the eye
-Color in the brain
-Nonstandard color perception

Associations

6 comments:

The Space Cowboy said...

Good explanation here. On the same topic, I'd say my favourite colour for 2008 would be green. Heh don't know why

veva said...

What color do you like? I like the color red http://galleryofcolors.blogspot.com/

rillys said...

The Space Cowboy,
do you like green...? great, i think good theraphy for eye...

rillys said...

veva,
you like a red? i like a blue.. good explanation on your blog....hey all want to know mean about of color go to veva blog http://galleryofcolors.blogspot.com/

Jesse said...

Definitely expanded my knowledge about colors some. Very interesting blog, never seen one quite like this.. Definitely will bookmark you.

rillys said...

Jesse,
thanks a lot.. i`m just do it what i like and love... and share with others...