colour

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colour

(US), color
1. 
a. an attribute of things that results from the light they reflect, transmit, or emit in so far as this light causes a visual sensation that depends on its wavelengths
b. the aspect of visual perception by which an observer recognizes this attribute
c. the quality of the light producing this aspect of visual perception
d. (as modifier): colour vision
2. 
a. a colour, such as red or green, that possesses hue, as opposed to achromatic colours such as white or black
b. (as modifier): a colour television
3. 
a. the skin complexion of a person, esp as determined by his race
b. (as modifier): colour prejudice
4. the use of all the hues in painting as distinct from composition, form, and light and shade
5. the distinctive tone of a musical sound; timbre
6. Physics one of three characteristics of quarks, designated red, blue, or green, but having no relationship with the physical sensation

color (perceived)

That attribute of visual perception that can be described by names such as yellow, red, blue, etc., or some combination of such names. (of an object) A characteristic of the appearance of an object, surface, etc., distinct from its form, gloss, shape, size, or position; depends on the spectral composition of the incident light, on the spectral reflectance or transmittance of the object, and on the spectral response of the observer.

colour

(graphics)
(US "color") Colours are usually represented as RGB triples in a digital image because this corresponds most closely to the electronic signals needed to drive a CRT. Several equivalent systems ("colour models") exist, e.g. HSB. A colour image may be stored as three separate images, one for each of red, green, and blue, or each pixel may encode the colour using separate bit-fields for each colour component, or each pixel may store a logical colour number which is looked up in a hardware colour palette to find the colour to display.

Printers may use the CMYK or Pantone representations of colours as well as RGB.
References in periodicals archive ?
Red stimulates conversation and raises a room's energy level, making it an ideal colour scheme for the living room or dining room, especially during parties.
Ms Webb has gathered 150 signatures on a petition in favour of the purple colour scheme.
Colour Scheme showed plenty promise in a couple of all-weather outings but he took some time to come good on the grass, although his opportunities have been limited.
She also requested an "ice-blue" colour scheme and "no sequins" on any of the pillows or sofas, and most importantly the bathroom must be "spotless" and the toilet given a "deep clean".
If in doubt, a colour scheme which uses a combination of soft, buttery yellows will al ways lighten up your home.
SELLERS are seeing red as a combined pounds 1billion is knocked off the nation's house prices every year by the wrong interior colour schemes, according to a survey.
Instead of just saying it is a really bad idea to use a text colour which contrasts insufficiently with its background, there is a big table full of numbers coded to some colour scheme.
The so-called Nocturne project will use state of the art low power LED lighting with a new colour scheme to transform the bridge into a new illuminated landmark structure.
Unfortunately, this is something that is often not considered until after a design and colour scheme has been decided.
Travel West Midlands has adopted a colour scheme for its vehicles which in itself has an aggressive appearance, but they then proceed to apply advertisements over part of the livery and their vehicles end up looking as though they are having a 'bad hair' day.
No-one with any artistic bent must have had any input into the nal design and colour scheme we have to put up with.