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  2. Web colors - Wikipedia

    en.wikipedia.org/wiki/Web_colors

    RGB values are usually given in the 0255 range; if they are in the 01 range, the values are multiplied by 255 before conversion. This number divided by sixteen (integer division; ignoring any remainder) gives the first hexadecimal digit (between 0 and F, where the letters A to F represent the numbers 10 to 15. See hexadecimal for more ...

  3. RGB color model - Wikipedia

    en.wikipedia.org/wiki/RGB_color_model

    On a typical standard 2.2-gamma CRT display, an input intensity RGB value of (0.5, 0.5, 0.5) only outputs about 22% of full brightness (1.0, 1.0, 1.0), instead of 50%. [19] To obtain the correct response, a gamma correction is used in encoding the image data, and possibly further corrections as part of the color calibration process of the device.

  4. List of monochrome and RGB color formats - Wikipedia

    en.wikipedia.org/wiki/List_of_monochrome_and_RGB...

    This list of monochrome and RGB palettes includes generic repertoires of colors (color palettes) to produce black-and-white and RGB color pictures by a computer's display hardware. RGB is the most common method to produce colors for displays; so these complete RGB color repertoires have every possible combination of R-G-B triplets within any ...

  5. Comparison of color models in computer graphics - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_color_models...

    In the RGB model, hues are represented by specifying one color as full intensity (255), a second color with a variable intensity, and the third color with no intensity (0). The following provides some examples using red as the full-intensity and green as the partial-intensity colors; blue is always zero:

  6. Wikipedia : WikiProject Color/Normalized Color Coordinates

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    (The numbers 0 through 255 fit naturally within one byte and are therefore used to directly drive graphics cards.) Most image editing programs accept this range. Therefore, RGB should be entered into image editing programs wherever possible because it rarely (if ever) requires conversion.

  7. X11 color names - Wikipedia

    en.wikipedia.org/wiki/X11_color_names

    Even in the current draft for CSS 4.0, dark gray continues to be a lighter shade than gray. [9] Some browsers such as Netscape Navigator insisted on an "a" in any "Gray" except for "Light Grey". Recent X releases (since 2014, xorg-rgb version 1.0.6) [10] also support the W3C definitions. In X11, the original definitions have been preserved (so ...

  8. sRGB - Wikipedia

    en.wikipedia.org/wiki/SRGB

    The sRGB standard defines the chromaticities of the red, green, and blue primaries, the colors where one of the three channels is nonzero and the other two are zero.The gamut of chromaticities that can be represented in sRGB is the color triangle defined by these primaries, which are set such that the range of colors inside the triangle is well within the range of colors visible to a human ...

  9. Color difference - Wikipedia

    en.wikipedia.org/wiki/Color_difference

    A very simple example can be given between the two colors with RGB values (0, 64, 0) ( ) and (255, 64, 0) ( ): their distance is 255. Going from there to (255, 64, 128) ( ) is a distance of 128. When we wish to calculate distance from the first point to the third point (i.e. changing more than one of the color values), we can do this: