A computer monitor forms color using which three primary colors?

• A. Red, Green, and Blue
• B. Cyan, Magenta, Yellow
• C. Red, Yellow, Blue
• D. Green, Blue, Yellow

Answer: (A)

Color on screens is created by additive color mixing using three primaries: red, green, and blue. A monitor builds each color by varying how bright each of these light-emitting subpixels is. When all three are at full brightness, you see white; with different intensities, you can reproduce the wide range of colors we perceive. This approach is what makes digital displays work.

The other color sets belong to different systems: cyan, magenta, and yellow are subtractive primaries used in printing with inks, which absorb light rather than emit it. Red, Yellow, Blue is a traditional artist’s primaries set, not used for digital screens. Green, Blue, Yellow isn’t a standard color model for displays either.