If you're doomed to those three colours because of their branding, you're heavily restricted because of the tone clash (the grey/silver and the heavy royal blue) - so to work with what you've got:
I would suggest maybe using the white as the background colour to help keep any similar elements from butting up against each other too much. It's easier to apply to letterheads/printed items that way too.
Are they happy with you making the left-to-right order of the initials (AFN) and the order names (FAN) consistent? If so, I would try that and in doing so, perhaps consider using one consistent font?