In mathematical terms, a hexadecimal (hex) is a numeral system consisting of a base, of 16. It uses sixteen distinct symbols:
Numeric symbols: from 0-9 and A, B, C, D, E, F to represent the missing values (10 to 15).
Its major use is to represent binary coded values through a user friendly fashion and this principle is also use for color schemes.
The Hexadecimal code
Want to know the hexadecimal code of a color, to integrate it into your web pages?