: 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.


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

Word History



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

First Known Use


1979, in the meaning defined above


1985, in the meaning defined above

Time Traveler
The first known use of RGB was in 1979

Dictionary Entries Near RGB

Cite this Entry

“RGB.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RGB. Accessed 28 Nov. 2023.

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