Binary: The binary system is a numbering system that uses only two digits (0 and 1) to represent values. Hexadecimal is often used as a shorthand for writing and understanding binary code.
Decimal: The decimal system is the base-10 numbering system we use every day. Hexadecimal provides an alternative way of representing numbers that can be easier for computers to work with.
RGB Color Codes: In web design and graphics, RGB color codes are often represented using hexadecimal notation (#RRGGBB), where each pair of hex digits represents the intensity of red, green, and blue components of the color.