What is the use of Hexadecimal number system in computers?

The use of the hexadecimal number system in computers includes the following:

1. The Hexadecimal number system is used in computers to specify memory addresses (which are 16-bit or 32-bit long). For example, a memory address 1101011010101111 is a big binary address but with hex it is D6AF which is easier to remember.
2. The Hexadecimal number system is used to represent color codes. For example, FFFFFF represents White, FF0000 represents Red, etc.