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ISCC–NBS descriptor. Vivid reddish orange. B: Normalized to [0–255] (byte) Red (RGB), RGB red, or electric red[citation needed] (as opposed to pigment red, shown below) is the brightest possible red that can be reproduced on a computer monitor. This color is an approximation of an orangish red spectral color.
Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and a secondary color (made from magenta and yellow) in the CMYK color model, and is the complementary color of cyan.
Hexadecimal 8-bit RGB representations of the main 125 colors. A color in the RGB color model is described by indicating how much of each of the red, green, and blue is included. The color is expressed as an RGB triplet ( r, g, b ), each component of which can vary from zero to a defined maximum value.
The IALA recommends categorical color codes in 7 colors: red, orange, yellow, green, blue, white & black. Adding redundant coding of luminosity and colorfulness adds information and increases speed and accuracy of color decoding tasks. Color codes are superior to others (encoding to letters, shape, size, etc.) in certain types of tasks.
The first letter of the color code is matched by order of increasing magnitude. The electronic color codes, in order, are: 0 = Black; 1 = Brown; 2 = Red; 3 = Orange; 4 = Yellow; 5 = Green; 6 = Blue; 7 = Violet; 8 = Gray; 9 = White; Easy to remember. A mnemonic which includes color name(s) generally reduces the chances of confusing black and brown.
Byte 1: red value (color type red) Byte 2: green value (color type green) Byte 3: blue value (color type blue) Byte 4 (optional): alpha value; For example, consider the color where the red/green/blue values are decimal numbers: red=36, green=104, blue=160 (a grayish-blue color).
Code red: fire; Code silver: gun threat/shooter; Code white: violent/behavioural situation; Code yellow: missing person; Code 33: obstetrical emergency; Quebec. The following codes are in use in Quebec. Code black: bomb threat/suspicious object; Code blue: adult cardiac or respiratory arrest, loss of consciousness; Code brown: in-facility ...
Ultra red is a color formulated by Crayola in 1972. In 1990, the name of the color was changed to wild watermelon . With a hue code of 350, this color is within the range of carmine colors. This color is supposed to be fluorescent, but there is no mechanism for displaying fluorescence on a computer screen.
Wikimedia Commons has media related to Types of red. Various shades of the color red. This category is for all varieties, not only shades in the technical sense. See also the categories Shades of magenta and Shades of pink.
The Red Color (Hebrew: צבע אדום, transl.: Tzeva Adom, i.e. code red) is an early-warning radar system originally installed by the Israel Defense Forces in several towns surrounding the Gaza Strip to warn civilians of imminent attack by rockets (usually Qassam rockets).