Color Theory & Design
Lesson 1 of 3 9 min +70 XP

The Color Wheel

Primaries, mixing, and harmony.

What you'll learn

  • Name the primary and secondary colors
  • Identify complementary pairs
  • Explain a simple color harmony
The wheel that predicts harmony

Arrange colors in a circle and opposites (blue and orange) pop against each other while neighbors (blue and green) blend calmly. The color wheel is a map that lets designers predict which combinations will sing before they mix a drop.

How colors relate

The color wheel arranges hues so their relationships are visible. The primaries — red, yellow, blue — mix to make the secondaries (orange, green, purple). Colors opposite each other are complementary; placed side by side they intensify each other.

Complements pop

Blue and orange, red and green, yellow and purple sit opposite on the wheel. Pairing complements creates maximum contrast and visual energy.

Simulation · Color mixer
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Color 1

Color 2

red + yellow = orange

Mix the primaries and watch secondaries appear — then find each color's complement.

Lab · Mix a secondary
  1. Start with two primaries: red and yellow.
  2. Predict the secondary they produce.
  3. Name the primary that is its complement.

What you should see: Red + yellow → orange; its complement is the remaining primary, blue. Orange and blue sit opposite on the wheel.

Knowledge Check

+20 XP / correct

1. Which set lists the three primary colors?

2. The complement of blue is…