Look up colour or color in Wiktionary, the free dictionary.

Color or colour is the visual perceptual property corresponding in humans to the categories called red, yellow, blue, green, etc.

Color or colour may also refer to:

Science

• Color charge, in particle physics, a property of quarks and gluons
• Color index, in astronomy, a simple numerical expression that determines the color of an object
• Color temperature, the temperature of a radiating black body corresponding to a given color of light
• Color vision, the ability of an organism or machine to distinguish objects based on light wavelength
• Colorimetry, the mathematical science of the measurement and perception of color
• Colors of noise, the descriptions of noises based on the shape of their spectral densities
• Dye, a colored substance that has an affinity to the substrate to which it is being applied
  • Food coloring, any substance added to food to change its color
• Pigment, solid colored particles, used in paints
  • Biological pigment, colored substances in living organisms
• Primary color, a color belonging to a set of three that can be combined to make a gamut of colors

Arts, entertainment, and media

Computing and technology

• Color (software), a color-grading application for Apple's Final Cut Studio video production suite
• Color Labs, a former social photo and video broadcasting smartphone application, also known as color.com

Finance and law

• Color of law, a legal term meaning "pretense or appearance of" some right
• Color, also known as gamma decay, the derivative of gamma with respect to time

Insignia and groups

• Colors (motorcycling), motorcycling club insignia
• Military colours, flags of a regiment, battalion, etc.
• Gang colors, colors or insignia worn by gang members
• Political colour, colors associated with a political party or ideology
• Sporting colours, a form of recognition for sporting prowess at a university; known in many places as a Blue
• Color Genomics, a population health company that provides genetic tests
• Colors (symbolic), representative of institutions, for example as at List of Oklahoma state symbols

Skin color, ethnicity, or race

• Colored, a potentially offensive term used in the U.S. to refer to people of certain ethnicities
• Coloureds, a term in Southern Africa for people of mixed ethnic origin
• Human skin color, human skin pigmentation
• Person of color, a term used primarily in the U.S. for a person who is not white
• Race (human categorization), as defined when conflated with skin color

Other

• Colors (restaurant), a restaurant in New York City

See also

• All pages with titles beginning with Color
• All pages with titles beginning with Colour
• The Color (disambiguation)
• Animal coloration
• Colorful (disambiguation)
• Coloring (disambiguation)
• In Color (disambiguation)
• Coulours, a commune in the Yonne department in Bourgogne-Franche-Comté in north-central France
• List of colors