Oregon Cosmetology Certification Practice Exam 2025 - Free Cosmetology Certification Practice Questions and Study Guide

In hair color theory, the three primary colors are red, yellow, and blue. These colors serve as the foundation for creating all other colors through mixing. When combined in various ways, primary colors can produce secondary colors (green, orange, and purple) and a wide range of tones that are used in hair coloring. Understanding these primary colors is essential for cosmetologists, as they enable professionals to create a desired shade or tone by mixing different hair color products effectively.

The other options include colors that do not serve as the foundational building blocks in color theory. For example, the color combinations in the first option are complementary colors that can be used to neutralize others but do not function as primary colors. Similarly, black, white, and gray represent shades and tones rather than primary colors. Lastly, pink, teal, and gold are colors that are either derived from mixing primary colors or represent specific hues rather than being foundational. Thus, recognizing red, yellow, and blue as the primary colors is essential for a solid understanding of hair coloring fundamentals.