Color - Hue (Wavelength, type of color) (Shades of red, orange, yellow, green, blue, and purple)
Table of Contents
1 - About
The average person can distinguish about 150 colors (hues) of light and every one can be described using one or two of only six colors :
- violet (purple)
This colors as in the rainbow are defined as pure hue (ie without any admixture of other colors).
The human perception distinguishes between:
- “unique” (psychologically primary)
- and composite (mixed) hues.
Technical definition (in the CIECAM02 model): the degree to which a stimulus can be described as similar to or different from stimuli that are described as the unique hues (red, green, blue, and yellow).
2 - Articles Related
3 - Formula
See Color - Chroma:
- Chromatic: Having hue
- Achromatic: Without hue
- Polychromatic: Having many hues
- Monochromatic: Having one hue only
4 - Representation
4.1 - Scale
4.2 - Color Wheel
A color wheel is an abstract illustrative organization of color hues around a circle. Each angle corresponds to a hue.
4.3 - HSV Cone
See also the hue saturation value cone.
5 - Unique
A unique hue is defined as a color which an observer perceives as a pure, without any admixture of the other colors.
The unique hues are :
- and yellow
6 - Pure
A hue is called pure without:
- or complementary in it.
The degree of purity of a hue is defined by the color intensity property.