Which colors are made by combining two primary colors in equal proportion?

Combining two primary colors in equal proportion produces secondary colors. The primary colors in the context of traditional color theory are red, blue, and yellow. When these colors are mixed together, they create the secondary colors: red and blue make purple, red and yellow make orange, and blue and yellow make green.

This process is fundamental in understanding color mixing, especially in haircoloring where achieving the desired shade often involves blending base colors. Neutral colors are typically created using combinations of complementary colors or by adjusting base colors with toned additives. Tertiary colors arise from mixing a primary color with a secondary color, and pastel colors are lighter shades resulting from adding white to a color, not strictly from mixing primary colors. Thus, the definition of secondary colors is essential in the realm of color theory and practical hair coloring.