contrast

Contrast is a design principle that emphasizes differences between elements, often in nearly equal proportions, to highlight their unique qualities. This is stronger than an accent, which is a single element that stands out from its surroundings in limited quantity. For example, juxtaposing a formal building with an informal park creates contrast. While contrast can enliven a design, it is more challenging to handle successfully than simple harmony. When handled poorly, contrasting elements can simply cancel each other out. Contrast is the quality or state of being different.12