Which of the following colors cannot be created by mixing other colors?

The primary colors are foundational in color theory, specifically within the subtractive color model, which is commonly taught in design and art. These colors include red, blue, and yellow. They cannot be created by mixing other colors together; instead, they are the building blocks used to create all other colors in the color spectrum.

When mixed, primary colors produce secondary colors—green, orange, and purple—which are derived from combinations of two primary colors. Tertiary colors, meanwhile, result from mixing a primary color with a secondary color. Complex colors refer to shades or variations that may include multiple colors or tones but ultimately stem from primary or secondary colors. Therefore, the distinction is clear: primary colors stand alone as unique and unmixable, which makes them essential to understanding the entire color palette.