Hexadecimal Numbers
Hexadecimal numbers, often abbreviated as hex, are a base-16 number system used in computing and digital electronics. Unlike the decimal system, which uses ten digits (0-9), hexadecimal includes six additional symbols: A, B, C, D, E, and F. This allows it to represent values from 0 to 15 with a single digit, making it more compact for expressing large binary numbers.
Hexadecimal is commonly used in programming and web design, particularly for defining colors in HTML and CSS. For example, the color white is represented as #FFFFFF in hex, where each pair of digits corresponds to the intensity of red, green, and blue components.