In a RGB color space, hex #000080 (also known as Navy blue) is composed of 0% red, 0% green and 50.2% blue. Whereas in a CMYK color space, it is composed of 100% cyan, 100% magenta, 0% yellow and 49.8% 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.