They are directly opposite in the color wheel.

a. Complementary colors

b. Secondary Colors

c. Split Complementary

d. Triad

Complementary colors are directly opposite on the color wheel. If you've worked with a color wheel before, you'll probably notice that each complementary pair is made up of one warm color and one cool color.

Complementary colors are pairs of colors which, when combined or mixed, cancel each other out (lose hue) by producing a grayscale color like white or black. When placed next to each other, they create the strongest contrast for those two colors. Complementary colors may also be called "opposite colors".

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Answer:A- Complementary colors

Explanation:

Complementary colors are directly opposite on the color wheel. If you've worked with a color wheel before, you'll probably notice that each complementary pair is made up of one warm color and one cool color