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 classic literature ?
On our return we overtook a party of about twenty young black girls, dressed in excellent taste; their black skins and snow-white linen being set off by coloured turbans and large shawls.
Wollaston, Mr., on varieties of insects; on fossil varieties of land-shells in Madeira; on colours of insects on sea-shore; on wingless beetles; on rarity of intermediate varieties; on insular insects; on land-shells of Madeira, naturalised
President Uhuru Kenyatta will present the Presidential Colour and Regimental Colour to the 17th Battalion of Kenya Rifles during the Jamhuri Day celebrations at the Nyayo National Stadium in Nairobi on Wednesday.
To explain this further, let's first understand the basis of this whole colour theory.
Cambridge in Colour (www.cambridgeincolour.com), an educational community for photographers, makes a delightful comparison of color management to the consumption of hot peppers, making it quite clear that the mere number of a color does not guarantee that it.
Abstract: In the area of colour reproduction there is the imperative of shifting between the monitor display colour model and the one used in reproduction.
Richard Prime, communications manager, NCS Colour AB: Color is an incredible tool for a designer.
What's the colour? - naming the colour of objects around you is a great start.
The dazzling red, orange, and crimson colors of tropical fruits inspired his hypothesis, which he put forth in an 1879 book, The Colour Sense: Its Origin and Development.
Add a little Bloom Sheer Colour Cream in Dewy ($13, www.sephora.com) on the apples of your cheeks and a slick of Bloom Lip Gloss in Sugar ($16, www.sephora.com), and you're done!
That is dearly the object lesson of the early, Don DeLillo-esque Trying to Remember the Colour of Jackie Kennedy's Pillbox Hat, 1995, a series of 100 drawings, each of which contains a specimen of pink; taken as a whole they form an absurdly impossible attempt to capture the exact shade of pink the former first lady was wearing on the day of her husband's assassination.
Throughout most of the history of architecture, applying colour to buildings has been normal, not extraordinary.