Which trio represents the primary colors of light?

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

Answer: (B)

Light uses additive color mixing, and its primary colors are red, green, and blue. When all three are at full brightness, they create white light, which is why screens combine these colors to display images. Therefore, red, blue, and green represent the primary colors of light.

The other options reflect primaries from pigment-based systems or combinations that aren’t primary in light: red, yellow, and blue are traditional painter’s primaries; cyan, magenta, and yellow are used in printing (subtractive mixing); and orange, green, and violet aren’t the standard light primaries. In light, yellow actually comes from red and green, not from a primary.