How is contrast typically used in design?

Contrast in design is primarily used to reinforce the focal point by creating noticeable differences between elements. By juxtaposing elements that are different in color, size, shape, or texture, designers can draw attention to the most important parts of a composition. This heightened difference not only captivates the viewer’s eye but also directs their focus, making it easier to discern key messages or features within the design.

In effective design, contrast acts as a tool to add visual interest and to highlight significant aspects, leading to a more engaging and functional composition. When elements such as light and dark, bold and subtle, or large and small are contrasted, it can add drama and urgency to the artwork, effectively guiding the viewer to essential areas intuitively and automatically.

While the other options mention aspects like harmony, rhythm, or gradual changes, they do not accurately capture the primary function of contrast in focusing attention, making the usage of contrast to reinforce focal points especially significant in any successful design.