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The test chart shows the full 256 levels of the red, green, and blue (RGB) primary colors and cyan, magenta, and yellow complementary colors, along with a full 256-level grayscale. Gradients of RGB intermediate colors (orange, lime green, sea green, sky blue, violet, and fuchsia), and a full hue spectrum are also present.
The first row is reserved for a page header and attributes are set with control codes which each occupy one character position giving a maximum resolution of 78×72. Apple II (1977) "Low" (text block) 16-color, "high resolution" (140x192 bitmap) 6-color and "double high" 16-color (NTSC artifact based; actually 280×192 monochrome) graphic modes.
This is a list of software palettes used by computers. Systems that use a 4-bit or 8-bit pixel depth can display up to 16 or 256 colors simultaneously. Many personal computers in the early 1990s displayed at most 256 different colors, freely selected by software (either by the user or by a program) from their wider hardware's RGB color palette.
In some uses, hexadecimal color codes are specified with notation using a leading number sign (#). [1] [2] A color is specified according to the intensity of its red, green and blue components, each represented by eight bits. Thus, there are 24 bits used to specify a web color within the sRGB gamut, and 16,777,216 colors that may be so specified.
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 January 2025. Color "Gold tone" redirects here. For the type of photographic print, see Gold tone (print). For treatments that change the natural color of gold, see Colored gold. For the element, see Gold. This article needs additional citations for verification. Please help improve this article by ...
A linear, or axial, color gradient. In color science, a color gradient (also known as a color ramp or a color progression) specifies a range of position-dependent colors, usually used to fill a region. In assigning colors to a set of values, a gradient is a continuous colormap, a type of color scheme.
24-bit palette sample image 24 bit Palette Color Test Chart. This is a full list of color palettes for notable video game console hardware.. For each unique palette, an image color test chart and sample image (original True color version follows) rendered with that palette (without dithering unless otherwise noted) are given.
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.