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Red

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— Color coordinates —
Hex triplet #FF0000
RGBB r, g, b) (255, 0, 0)
CMYKH c, m, y, k) (0, 100, 100, 0)
HSV h, s, v) (0°, 100%, 100%)
B: Normalized to [0–255] (byte)
H: Normalized to [0–100] (hundred)
Red is any of a number of similar colors at the lowest frequencies of light discernible by the human eye. Red light has a wavelength range of roughly 630-760 nm. Lower frequencies are called infrared, or below red. 
Red is an additive primary color, complementary to cyan. It was once considered to be a subtractive primary color, and is still sometimes described as such in non-scientific literature; however, the colors cyan, magenta and yellow are now known to be closer to the true subtractive primary colors detected by the eye, and are used in modern color printing. 

One common use of red as an additive primary color is in the RGB color model. Because "red" is not by itself standardised, color mixtures based on red are not exact specifications of color either. In order to produce exact colors the color red needs to be defined in terms of an absolute color space such as sRGB. As used in computer monitors and television screens, red is very variable, but some systems may apply color correction (so that a standardised "red" is produced that is not in fact full intensity of only the red colorant). A few examples of the color red are Stop signs, strawberries, apples.


Usage, symbolism, and colloquial expressions

Chinese wedding gown
Enlarge
Chinese wedding gown

  • One screen is called Red Screen of Death
  • Red is also used to symbolize AIDS awareness or Drug awareness, in the form of a red ribbon
  • In fiction

    Variations

    Sandstone interior of Antelope Canyon, displaying various reddish hues
    Enlarge
    Sandstone interior of Antelope Canyon, displaying various reddish hues
    
    

    Shades, Tones, Tints, etc

    Shades Description Tones Description Tints Description Other Description
    Maroon

    A darker shade of red that is much like brown

    Pink

    Lightish red.

    Rose

    As its name implies: A shade of red much like that of a rose. This shade is half pure red and half maroon

    Raspberry

    A shade of red that is a combination of purple and red with slightly more red

    In other languages

    Hungarian has two words for red, medium piros and dark vörös, which are distinct colors the way red and pink are distinct colors in English.
    In Turkish there are numerous words for red: Al generally refers to the color of blood and related things (blushing, Turkish flag); Kızıl is bright red, and generally refers to fire or rebellion (sunset, communist). Kırmızı is a more general word for red, without strong emotional meaning. 
    
    In some decorating and fashion contexts, shades of red are describes by reference to the colors of fruits and vegetable that commonly match that shade. These include cherries, beets, turnips, strawberries (often used in referring to "strawberry blonde" hair), and raspberries (as referenced in the Prince song, "Raspberry Beret". While the most popular color for apples is a dark shade of red, the fruit is usually invoked in fashion or decorating to reference a pale yellowish green. 
    
    In Welsh a "blue" movie (i.e. pornographic) is called a ffilm goch (a red movie). 
    
    Red is "lal" in Bangla. 
    
    In Sanskrit, "arun" can refer to a shade resembling vermillion.

    Red pigments

    See also

    Look up [[wiktionary:|}}}]] in
    Wiktionary, the free dictionary.

    The Electromagnetic Spectrum
    (Sorted by wavelength, short to long)

    Gamma ray | X-ray | Ultraviolet | Visible spectrum | Infrared | Terahertz radiation | Microwave | Radio waves


    Visible (optical) spectrum: Violet | Blue | Green | Yellow | Orange | Red


    Microwave spectrum: W band | V band | K band: Ka band, Ku band | X band | C band | S band | L band


    Radio spectrum: EHF | SHF | UHF | VHF | HF | MF | LF | VLF | ULF | SLF | ELF


    Wavelength designations : Microwave | Shortwave | Mediumwave | Longwave

    Web colors black silver gray white red maroon purple fuchsia green lime olive yellow orange blue navy teal aqua
                                     

       
    Alizarin Burgundy Cardinal Carmine Cerise Chestnut Crimson Falu red Fuchsia Magenta Maroon Mauve
                           
    Red Red-violet Rust Puce Sangria Scarlet Terra cotta Vermilion
                   

     


    From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
    All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.


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