"RGB" redirects here. For other uses, see RGB (disambiguation).
Not to be confused with RBG.
Full color image along with its R, G, and B componentsAdditive color mixing demonstrated with CD covers used as beam splittersA diagram demonstrating additive color with RGB
The RGB color model (UK spelling: RGB colour model) is an additive color model[1] in which the red, green and blue primary colors of light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue.[2]
The main purpose of the RGB color model is for the sensing, representation, and display of images in electronic systems, such as televisions and computers, though it has also been used in conventional photography and colored lighting. Before the electronic age, the RGB color model already had a solid theory behind it, based in human perception of colors.
RGB is a device-dependent color model: different devices detect or reproduce a given RGB value differently, since the color elements (such as phosphors or dyes) and their response to the individual red, green, and blue levels vary from manufacturer to manufacturer, or even in the same device over time. Thus an RGB value does not define the same color across devices without some kind of color management.[3][4]
Typical RGB input devices are color TV and video cameras, image scanners, and digital cameras. Typical RGB output devices are TV sets of various technologies (CRT, LCD, plasma, OLED, quantum dots, etc.), computer and mobile phone displays, video projectors, multicolor LED displays and large screens such as the Jumbotron. Color printers, on the other hand, are not RGB devices, but subtractive color devices typically using the CMYK color model.
^Cite error: The named reference :0 was invoked but never defined (see the help page).
^Fairman, Hugh S.; Brill, Michael H.; Hemmendinger, Henry (February 1997). "How the CIE 1931 color-matching functions were derived from Wright-Guild data". Color Research & Application. 22 (1): 11–23. doi:10.1002/(SICI)1520-6378(199702)22:1<11::AID-COL4>3.0.CO;2-7. The first of the resolutions offered to the 1931 meeting defined the color-matching functions of the soon-to-be-adopted standard observer in terms of Guild's spectral primaries centered on wavelengths 435.8, 546.1, and 700nm. Guild approached the problem from the viewpoint of a standardization engineer. In his mind, the adopted primaries had to be producible with national-standardizing-laboratory accuracy. The first two wavelengths were mercury excitation lines, and the last named wavelength occurred at a location in the human vision system where the hue of spectral lights was unchanging with wavelength. Slight inaccuracy in production of the wavelength of this spectral primary in a visual colorimeter, it was reasoned, would introduce no error at all.
^GrantMeStrength (30 December 2021). "Device-Dependent Color Spaces - Win32 apps". learn.microsoft.com. Retrieved 2022-10-24.
The RGBcolormodel (UK spelling: RGB colour model) is an additive colormodel in which the red, green and blue primary colors of light are added together...
An RGBcolor space is one of many specific additive colorimetric color spaces based on the RGBcolormodel. RGBcolor spaces are commonly found describing...
models include the light model (RGB) and the paint, pigment and ink CMY colormodel, which is much more accurate in terms of color gamut and intensity compared...
compromised. A "colormodel" is an abstract mathematical model describing the way colors can be represented as tuples of numbers (e.g. triples in RGB or quadruples...
additive colormodels, such as RGB, white is the "additive" combination of all primary colored lights, and black is the absence of color. In the CMYK model, it...
alpha. While it is sometimes described as a color space, it is actually a three-channel RGBcolormodel supplemented with a fourth alpha channel. Alpha...
cylindrical-coordinate representations of points in an RGBcolormodel. The two representations rearrange the geometry of RGB in an attempt to be more intuitive and perceptually...
primary colors, along with magenta and yellow. In the additive color system, or RGBcolormodel, used to create all the colors on a computer or television...
colors for a given color model or color space. RGB and CMYK colormodels are popular colormodels in modern color science, but are only chosen as efficient...
Magenta (/məˈdʒɛntə/) is a purplish-red color. On color wheels of the RGB (additive) and CMY (subtractive) colormodels, it is located precisely midway between...
list of monochrome and RGB palettes includes generic repertoires of colors (color palettes) to produce black-and-white and RGBcolor pictures by a computer's...
sub-pixels of a color display, both of which follow the additive model closely. The most common additive colormodel is the RGBcolormodel, which uses three...
so the color space is theoretically an unbounded extrapolation of sRGB similar to scRGB. Specifying a non-sRGBcolor this way requires the RGB() function...
The Adobe RGB (1998) color space or opRGB is a color space developed by Adobe Inc. in 1998. It was designed to encompass most of the colors achievable...
describe colors, such as the RGB and CMYK colormodels.) A uniform color space (UCS) is a colormodel that seeks to make the color-making attributes perceptually...
Blackness) is a cylindrical-coordinate representation of points in an RGBcolormodel, similar to HSL and HSV. It was developed by HSV’s creator Alvy Ray...
or by a combination of orange and black—illustrated in the color box. The RGBcolormodel, that generates all colors on computer and television screens...
depends on the color theory one uses: Modern color theory uses either the RGB additive colormodel or the CMY subtractive colormodel, and in these, the...
use floating-point values for all three coordinates. Unlike the RGB and CMYK colormodels, CIELAB is designed to approximate human vision. The L* component...
the camera's native RGBcolormodel tended to produce less color inconstancy (i.e., less distortion of the colors) than in monitor RGB for over 4000 hypothetical...
television screens using the RGBcolormodel and in printing with the CMYK colormodel. As such, it is an arbitrary classification of color. Below is a list of...
other color spaces. For example, sRGB and Adobe RGB are both color spaces based on the RGBcolormodel. However, the green primary of Adobe RGB is more...
monitor. This color is an approximation of an orangish red spectral color. It is one of the three primary colors of light in the RGBcolormodel, along with...
The ProPhoto RGBcolor space, also known as ROMM RGB (Reference Output Medium Metric), is an output referred RGBcolor space developed by Kodak. It offers...
The YCoCg colormodel, also known as the YCgCo colormodel, is the color space formed from a simple transformation of an associated RGBcolor space into...
colormodel used in modern printing, purple is made by combining magenta pigment with either cyan pigment, black pigment, or both. In the RGBcolor model...
CIE RGBcolor space, from which the CIE XYZ color space was derived. The CIE 1931 color spaces are still widely used, as is the 1976 CIELUV color space...
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