In a RGB color space, hex #c0c0c0 (also known as Silver) is composed of 75.3% red, 75.3% green and 75.3% blue. Whereas in a CMYK color space, it is composed of 0% cyan, 0% magenta, 0% yellow and 24.7% black.
Web colors are colors used in displaying web pages, and the methods for describing and specifying those colors. Colors may be specified as an RGB triplet or in hexadecimal format called a hex triplet or according to their common color names. The following web color is from the list of standardized X11 color names from the X.org source code.