1. (n.) A type of computer color display output signal consisting of separately adjustable red, green, and blue signals or components. Compare composite video, in which signals are combined prior to output. RGB monitors offer higher resolution than composite monitors. Digital RGB systems are available, but most computers use analog RGB video. 2. (adj.) Describes a type of color model in which colors are represented as the combination of red, green, and blue light. RGB color space is often represented as a square, with one corner black and the opposite corner white.
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