Which principle of art involves using oppositional elements for visual appeal?

The principle of art that involves using oppositional elements for visual appeal is contrast. Contrast is a fundamental concept in art that refers to the juxtaposition of different elements to highlight their differences. This can include various opposing qualities such as light and dark, large and small, and rough and smooth. By employing contrast, artists create visual interest and draw attention to specific parts of their composition, making certain elements stand out more prominently.

For example, an artwork that features bright colors against a dark background uses contrast to guide the viewer's eye and create a more dynamic image. This principle enhances the overall impact of a piece and helps to convey the artist's intended message.

Other principles like repetition focus on creating patterns through the use of similar elements, while emphasis directs the viewer's attention to a particular point or subject. Movement pertains to how the viewer's eye travels through an artwork. While these principles are vital for creating effective compositions, contrast specifically addresses the relationship between oppositional elements, making it essential for generating visual appeal.