High contrast refers to the difference in visual properties that makes an object distinguishable from its background. It is often used in design, photography, and art to draw attention to specific elements. High contrast can be achieved through variations in color, brightness, or texture, making it easier for viewers to focus on important details. In the context of accessibility, high contrast is crucial for individuals with visual impairments. Using high contrast colors, such as black text on a white background, enhances readability and ensures that information is accessible to a wider audience. This practice is important in digital interfaces, such as websites and applications, to improve user experience for all.