What does a hexadecimal color value represent?

A hexadecimal color value is a way to specify colors in web design and digital graphics using six digits, where each pair represents the intensity of red, green, and blue (RGB) components in the color. The first two digits signify the red component, the next two denote green, and the final two indicate blue. Each component can range from 00 to FF in hexadecimal notation, which corresponds to a decimal range of 0 to 255. Thus, a hexadecimal color value not only identifies a specific color but does so by defining the precise mix of these three primary colors.

Understanding this concept is crucial for web development, as colors can greatly impact user experience and design aesthetics. The other options, such as the size of an image, the resolution of a video, or the style of a web page, do not relate to how colors are defined using hexadecimal values. They pertain to different aspects of web design and development that are not connected to the representation of color.