Convert a RGB colour value to Decimal

Question

How do I convert a RGB colour value to just plain decimal?

So I have: RGB(255,255,255) is white
Its decimal equivalent is: 16777215

I have tried thinking it

Answer 1

A much better answer (in terms of clarity) is this:

'Convert RGB to LONG:
 LONG = B * 65536 + G * 256 + R

'Convert LONG to RGB:
 B = LONG \ 65536
 G = (LONG - B * 65536) \ 256
 R = LONG - B * 65536 - G * 256

LONG is your long integer (decimal) that you want to make. Easy huh? Sure, bitshift