Hexvärde

Hexvärde, also known as hexadecimal value, is a number representation system that uses a base of 16. This means it has 16 distinct symbols to represent numbers. These symbols are the digits 0 through 9, followed by the letters A through F. The letters A through F represent the decimal values 10 through 15, respectively. So, A equals 10, B equals 11, C equals 12, D equals 13, E equals 14, and F equals 15.

Hexadecimal is commonly used in computing and digital electronics. One of its primary advantages is its ability to represent binary data in a more human-readable format. Since 16 is a power of 2 (specifically, 2^4), one hexadecimal digit can represent exactly four binary digits (bits). This makes it very convenient for programmers and engineers to work with memory addresses, color codes, and other binary representations.

For instance, the binary number 1111 can be represented by the hexadecimal digit F. Similarly, the binary number 1010 is equivalent to the hexadecimal digit A. This relationship allows for a compact and efficient way to display and manipulate large amounts of binary data. In web development, hexvärden are frequently used to define colors on web pages. For example, the color black is often represented as #000000, where each pair of hexadecimal digits represents the intensity of red, green, and blue light, respectively. A value of 00 means no intensity, and FF means maximum intensity.