What does the term "color wheel" help to determine?

The term "color wheel" is a fundamental concept in color theory, particularly in the context of art and design, including the cosmetic arts. It visually represents the relationships between colors, providing a guide for understanding how colors can work together.

In the context of dyeing hair or selecting makeup shades, the color wheel is used to determine complementary, analogous, and contrasting colors. This knowledge is crucial for creating harmonious looks, enhancing features, and making informed choices about which colors to use based on an individual's skin tone, hair color, and personal preferences. Thus, recognizing how to utilize the color wheel is essential for achieving aesthetically pleasing results in cosmetics and hairstyling.

The focus of the color wheel on color relationships and selection aligns directly with using color theory for dye, making it the correct choice. Other options, while relevant to the beauty industry, do not directly relate to the function and application of the color wheel in determining color choices.