ELI5: Explain Like I'm 5

Web colors

Web colors are colors that are used to create digital images and websites. Each color has its own code that tells the computer to use that color. The code for each color is made up of 6 numbers or letters which range from 0 to 9 or A to F. For example, the color red is written as #FF0000 in web colors. Each number or letter tells the computer how much red, green, and blue to mix together to make the color. Red is made with all the red (FF), no green (00), and no blue (00).