One way of communicating hexadecimal color codes is in the following way: #RRGGBB. The first pair of numbers represents the red color value (R), the second pair represents the green color value (G), and the third pair represents the blue color value (B). Sometimes a simplified color code scheme is used that follows this format: #RGB. In this format, only the first digits of each color component from the original format are used (#RRGGBB).
How many fewer colors are represented using this color code scheme (#RGB) as compared to the original format (#RRGGBB)?
a. 16^3
b. 16^6-16^3
c. 1/2(16^6)
d. 8^6