White
is a , green and blue, but it must be noted that the illumination provided by this technique has significant differences from that produced by incandescence (see below). On a browser that supports visual formatting in Cascading_Style_Sheets, the following box should appear in this color:Paint
In painting, white can be created by reflecting ambient light from a white pigment. White when mixed with black produces gray.White Light
Until Newton's work became accepted, most scientists believed that white was the fundamental color of light; and that other colors were formed only by adding something to light. Newton demonstrated that white was formed by combining the other colors. In the science of lighting, there is a continuum of colors of light that can be called "white". One set of colors that deserve this description are the colors emitted, via the process called ''incandescence'', by a black_body at various relatively-high temperatures. For example, the color of a black_body at a temperature of 2848 Kelvins matches that produced by domestic incandescent light_bulbs. It is said that "the ''color_temperature'' of such a light bulb is 2848 K". The white light used in theatre illumination has a color_temperature of about 3200 K. Daylight has a nominal color_temperature of 5400 K (called ''equal energy white''), but can vary from a cool red up to a bluish 25,000 K. Not all black body radiation can be considered white light: the background radiation of the universe, to name an extreme example, is only a few kelvins and is quite invisible.Standard Whites
Standard whites are often defined with reference to the International_Commission_on_Illumination's (CIE's) chromaticity diagram. These are the D series of standard illuminants. Illuminant D65, originally corresponding to a color temperature of 6,500 K, is taken to represent standard daylight.Computers
Computer_displays often have a color temperature control, allowing the user to select the color temperature (usually from a small set of fixed values) of the light emitted when the computer produces the electrical signal corresponding to "white". The RGB coordinates of white are 255 255 255.Usage, symbolism, colloquial expressions
Color coordinates
White in Heraldry
Arthur Charles Fox-Davies has argued that white can be considered a tincture in heraldry separate from its use to represent argent, and in fact the labels borne on the arms, crests and supporters of members of the British Royal Family other than the reigning sovereign are invariably shown as white.People Whose Surname Is White
Other definitions
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