In color theory, what does the color wheel help to illustrate?

The color wheel is a fundamental tool in color theory that visually represents the relationships between different colors. It illustrates how colors are organized based on their hue, showing primary colors, secondary colors, and tertiary colors in a circular format. This layout helps individuals understand the basic relationships, such as which colors are analogous (next to each other on the wheel) or which are complementary (opposite one another). By grasping these relationships, users can create color schemes that are harmonious or high-contrast, making it a crucial element in design, art, and aesthetics.