Today I learned that a computer monitor is made up of thousands of tiny red, green and blue dots which are grouped together.

Each of the three dots can have any value 0-255 which means that the total number of possible colors is 16777216.

  Each of the three dots can have any value from 0 to 255, which means that the total number of possible colors is 256*256*256 = 16,777,216.