Which color model uses Red, Green, and Blue as the primaries?

• A. RGB color model
• B. CMY color model
• C. RYB color model
• D. HSV color model

Answer: (A)

Color reproduction on screens relies on additive mixing of light using red, green, and blue as primaries. The RGB color model uses those three colors of light; by adjusting their intensities you can create the full range of colors seen on digital displays, and when all three are combined at full strength you get white. In other contexts, other models use different primaries: CMY uses cyan, magenta, and yellow for printing with subtractive mixing; RYB is the traditional painter’s primaries; HSV describes color by hue, saturation, and value rather than by fixed primaries. So the color model that uses Red, Green, and Blue as the primaries is RGB.