In graphic design, contrast adds a crispness to your photos. Adding too much contrast can make photos look too rigid, too dark, unnatural, while not adding enough contrast can make photos look flat and uninteresting. Contrast can be a dark color, sometimes black. In photography, contrast can also mean a light color against a darker color, such as wearing white or yellow against a dark blue or black background. Adding contrast adds a sharper look so details in your photos are more noticeable.