Web color
Each web color has its own definition, sRGB. This relates to the chromaticities of a single phosphor set, a given transfer curve, adaptive whitepoint, and viewing conditions. These have been chosen to be similar to many real-world monitors and viewing conditions. Even without color management, the colors created are fairly close to the given values. However, user agents can be different in the fidelity with which they show the colors. Better user agents use color management to create better color fidelity. This is important for Web-to-print applications.