Which of the following is defined as colors that cannot be created by mixing other colors?

Primary colors are defined as the fundamental colors that cannot be created by mixing other colors. In color theory, primary colors serve as the building blocks for all other colors. In the traditional color wheel, the primary colors include red, blue, and yellow. When these colors are combined in various ways, they create secondary colors (like green, orange, and purple) as well as a wide range of tertiary colors. This foundational aspect of primary colors is essential for all color mixing processes, making them critically important in haircoloring, painting, and other art forms.

Secondary colors are derived from mixing two primary colors, while tertiary colors result from mixing a primary color with a secondary color. Semi-permanent colors refer to a type of hair dye that temporarily alters hair color and can wash out over time, but they are not related to color theory in the same foundational way as primary colors.