This is my business envelope.  I used the gradient tool to create my RGB tricolor.  I also lowered the transparency on both the trip color and the disc logo.  A blue box is provided for the recipient's information.  A simple grey outlines box is for a stamp.

This is my stationary header.  A grey rectangle has a gradient to create the RGB tri-color. The trip-color also lines up with the disc logo. The pen tool was use to create the swooping "S" that covers the grey rectangle