What does a color wheel help with in graphic design?

A color wheel is a fundamental tool in graphic design that visually represents the relationship between different colors. It is arranged in a circular format to show how colors interact with one another, making it easier for designers to find complementary colors (those that enhance each other), analogous colors (those that are next to each other on the wheel for a harmonious effect), and triadic colors (three colors that are evenly spaced around the wheel for a vibrant palette). This understanding is crucial for effective color selection, ensuring that designs are visually appealing and convey the desired mood or message.

The other options focus on different aspects of design. For instance, selecting appropriate fonts relates to typography and the overall message of the design rather than color relationships. Measuring design proportions is important for layout but does not pertain to color dynamics. Creating mockups involves presenting a design concept but does not directly relate to understanding colors. Hence, a color wheel plays a pivotal role in focusing on color theory and application in graphic design.