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A mnemonic which includes color name(s) generally reduces the chances of confusing black and brown. Some mnemonics that are easy to remember: Big Boys Race Our Young Girls But Violet Generally Wins.
Gradient RGB/CMY color wheel Seven-color and twelve-color color circles from 1708 (attributed to Claude Boutet) Wilhelm von Bezold's 1874 Farbentafel. A color wheel or color circle [1] is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc.
Color terms can be classified as abstract or descriptive, though the distinction is often unclear. Abstract color terms refer only to the color they represent and any etymological link to an object of that color is lost. In English white, black, red, yellow, green, blue, brown, and gray are abstract color terms.
Among their other color pairs, brown (#282800) on dark green (#A0A000) has a contrast ratio of 3.24:1, which is less than the WCAG recommendation, dark brown (#1E1E00) on light green (#B9B900) has a contrast ratio of 4.54:1 and blue (#00007D) on yellow (#FFFF00) has a contrast ratio of 11.4:1. The colors named in the report use different color ...
The test chart shows the full 8-bit, 256 levels of the red, green and blue primary colors and cyan, magenta and yellow complementary colors, along with a full 8-bit, 256 levels grayscale. Gradients of full saturation of intermediate colors (orange, yellow-green, green-cyan, blue-cyan, violet, and red-magenta), and a full hue spectrum are also ...
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Cyan is any of the colors in the blue-green range of the visible spectrum, i.e., between approximately 490 and 520 nm. It is considered one of the main subtractive primary colors. Cyan is sometimes considered green or blue because of the way it appears.
This is why color television sets or color computer monitors need only produce mixtures of red, green and blue light. See Additive color . Other primary colors could in principle be used, but with red, green and blue the largest portion of the human color space can be captured.