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This article is about the color. For other uses, see Black (disambiguation).
| Black | ||
|---|---|---|
| — Commonly represents — | ||
| lack, evil, darkness, bad luck, illegal, mystery, silence, concealment, execution, end, chaos, death, and secrecy | ||
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| Hex triplet | #000000 | |
| B | (r, g, b) | (0, 0, 0) |
| HSV | (h, s, v) | (-°, -%, 0%) |
| Source | By definition | |
| B: Normalized to [0–255] (byte) | ||
Black is the color of objects that do not emit or reflect light in any part of the visible spectrum; they absorb all such frequencies of light. Mixing paints, inks or other pigments of all colors in theory eventually forms a mixture which absorbs all light and so appears black. Thus black is sometimes wrongly called \'a mixture of all colors\', while in fact an object emitting or reflecting all colors is perceived as white. Sometimes black is described as an "achromatic color", but in practice it can be considered a color, as in expressions like "black cat" or "black paint".
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Black can be defined as the visual impression experienced in directions from which no visible light reaches the eye. (This makes a contrast with whiteness, the impression of any combination of colors of light that equally stimulates all three types of color-sensitive visual receptors.)
Pigments that absorb light rather than reflect it back to the eye "look black". A black pigment can, however, result from a combination of several pigments that collectively absorb all colors. If appropriate proportions of three primary pigments are mixed, the result reflects so little light as to be called "black".
This provides two superficially opposite but actually complementary descriptions of black. Black is the lack of all colors of light, or an exhaustive combination of multiple colors of pigment. See also Primary colors
| c | m | y | k | |
|---|---|---|---|---|
| 0% | 0% | 0% | 100% | (canonical) |
| 100% | 100% | 100% | 0% | (ideal inks, theoretical only) |
| 100% | 100% | 100% | 100% | (registration black) |
In physics, a black body is a perfect absorber of light, but by a rule derived by Einstein it is also, when heated, the best emitter. Thus, the best radiative cooling, out of sunlight, is by using black paint, though it is important that it be black (a nearly perfect absorber) in the infrared as well.
In elementary science, far Ultraviolet light is called "black light" because, unseen (per se), it causes many minerals and other substances to fluoresce.
On January 16, 2008, researchers from Troy, New York’s Rensselaer Polytechnic Institute announced the creation of the darkest material on the planet. The material, which reflects only .045 percent of light, was created from carbon nanotubes stood on end. It absorbs nearly 30 times more light than the current standard for blackness, and is 3 times darker than the current record holder for darkest substance. Scientists claim that the new material has great potential in the manufacturing of solar panels. Darkest ever material created:Scientists create world\'s blackest black:
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In keeping with the law of conservation of energy, as a black color surface absorbs the light particles that hit it, the surface\'s particles are getting excited (excited particles = higher temperature).
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This list may require cleanup to meet Wikipedia\'s quality standards. Please help improve this list. It may be poorly defined, unverified or indiscriminate. |
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Some of these can be seen as positive or negative, depending on one\'s stance. For example, superstitions related to black cats hold them to be bad luck in the U.S. and good luck in the UK.
Black can be seen as the color of authority and seriousness.
Colloquially, black is sometimes used with a negative connotation. The reasons for this are various, but the most widely accepted explanations are that night is experienced by humans as negative and dangerous. A secondary reason is that stains are most visible as dark additions to pale materials. In traditional class-based Western cultures "pale" skin indicated genteel domestic or intellectual indoor-work as opposed to rough outdoor labor in the fields. Aspects of this black/white opposition are not unique to the West, as, for example in the Indian varna system and in Japanese Geisha makeup. African, Afro-Caribbean and African-American writers such as Frantz Fanon, Langston Hughes, Maya Angelou, and Ralph Ellison in particular identify a number of negative symbolisms surrounding the word "black", arguing that the good vs. bad dualism associated with white and black provide prejudiced connotations to color terminology for race. Some people associate black with evil and destruction as it naturally absorbs all light and even the Black Hole is described as \'nature\'s ultimate fury\'.
Black pigments include carbon black, ivory black, ebony, onyx and charcoal black.
| Web colors | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| black | gray | silver | white | red | maroon | purple | fuchsia | green | lime | olive | yellow | gold | orange | blue | navy | teal | aqua |
| Shades of gray | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gray | Arsenic | Bistre | Black | Charcoal | Davy\'s gray | Feldgrau | Liver | Payne\'s gray | Seal brown |
| Silver | Slate gray | Taupe | Purple taupe | Medium taupe | Taupe gray | Pale taupe | White | ||
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