A base-16 numbering system that uses 16 distinct symbols to represent values. The hexadecimal system is often used to represent large binary numbers more concisely since each hexadecimal digit represents four bits of binary data. Each hexadecimal digit can be represented using the digits 0-9 and the letters A-F. The letters A-F represent the values 10-15 in hexadecimal. For example, the binary number 11111111 can be represented as FF in hexadecimal. Hexadecimal is often used in computing to represent large binary numbers, such as addresses in memory, color codes in graphics, and data in files.

The 6-digit hexadecimal color code is made up of 3 pairs of 2-digit hexadecimal numbers, representing the red, green, and blue values of the color. For example, #FF0000 is a 6-digit hexadecimal code that represents the color red.

An 8-digit hexadecimal color code is made up of a 6-digit color code, followed by a 2-digit alpha value. The alpha value represents the transparency of the color. For example, #FF0000CC is an 8-digit hexadecimal code that represents a transparent version of the color red.

  • Abbreviation: Hex