: being or using a video signal in which each component of the signal (such as chrominance and luminance) is carried over a separate wire
an RGB computer monitor

Note: Video and television displays commonly use the RGB color model of combined red, green, and blue light to produce their images. This system is so common that the name for the color model has been adopted to refer to the video signal carrying this information.

RGB

2 of 2

noun

: the color model of three-color video displays using red, green, and blue light compare cmyk

Examples of RGB in a Sentence

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Noun
Other customizable features include RGB lighting and adjustable actuation distances. Mark Sparrow, Forbes.com, 18 Aug. 2026 This is the result of the RGB backlight leaning toward more neutral whites rather than any specific hue when many different colors are close together. Will Greenwald, PC Magazine, 17 Aug. 2026 HiLight consists of a ring of RGB LEDs inside the flash assembly on the back of the phone. ArsTechnica, 12 Aug. 2026 There are currently 30 members — all of them versed in the jargon of ADUs and MIH and RGB. Matthew Sedacca, Curbed, 13 July 2026 See All Example Sentences for RGB

Word History

Etymology

Adjective

red-green-blue (colors used in television transmission)

First Known Use

Adjective

1979, in the meaning defined above

Noun

1985, in the meaning defined above

Time Traveler
The first known use of RGB was in 1979

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Cite this Entry

“RGB.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RGB. Accessed 26 Aug. 2026.

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