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The color amaranth purple is displayed at right. This color is a representation of the color of purple amaranth flowers. [6] The common name purple aramanth applies to two species: Amaranthus blitum and Amaranthus cruentus. The first recorded use of amaranth purple as a color name in English was in 1912. [7]
The tertiary color on the HSV color wheel (also known as the RGB color wheel) precisely halfway between blue and magenta is called color wheel violet.This tone of violet—an approximation of the color violet at about 417 nanometers as plotted on the CIE chromaticity diagram—is shown at right.
The earliest examples of color codes in use are for long-distance communication by use of flags, as in semaphore communication. [1] The United Kingdom adopted a color code scheme for such communication wherein red signified danger and white signified safety, with other colors having similar assignments of meaning.
Traditionally, that color, defined as #00FFFF in hex, or (0,255,255) in RGB. The #00FFFF color code is called "cyan" in the RGB color but the X11 color names introduced the alternative name "aqua" for #00FFFF in 1987. Later, W3C popularized the name by using it in the named color palette of HTML 3.2 specifications.
Isaac Newton's color sequence (red, orange, yellow, green, blue, indigo, violet) is kept alive today by several popular mnemonics.One is simply the nonsense word roygbiv, which is an acronym for the seven colors. [5]
An achromatic gray is a gray color in which the red, green, and blue codes are exactly equal. The web colors gray, gainsboro, light gray, dark gray, and dim gray are all achromatic colors. A chromatic gray is a gray color in which the red, green, and blue codes are not exactly equal, but are close to each other, which is what makes it a shade ...
The following chart presents the standardized X11 color names from the X.org source code. ... values in several notations of the RGB color space, i ... Purple, 27% ...
Shades of brown can be produced by combining red, yellow, and black [1] pigments, or by a combination of orange and black—illustrated in the color box. The RGB color model, that generates all colors on computer and television screens, makes brown by combining red and green light at different intensities.