What is a hex color?

A hex color is a way to specify colors using hexadecimal (base-16) values, commonly used in web design and digital graphics. It’s represented by a six-digit code, preceded by a #, with each pair of digits defining the intensity of red, green, and blue components, respectively.

Here's how it works:

• #RRGGBB format, where:
  • RR is the red component
  • GG is the green component
  • BB is the blue component

Each pair of hex digits can range from 00 to FF (0 to 255 in decimal), allowing for 256 variations per color component. For example:

• #FF0000 is pure red.
• #00FF00 is pure green.
• #0000FF is pure blue.
• #FFFFFF is white.
• #000000 is black.

In addition, hex colors support an optional transparency or alpha value with eight digits, like #RRGGBBAA. For example, #FF000080 represents a semi-transparent red.