VMFA-321 F4S'S

I am looking for info on colors used on at least two VMFA-321 F4S's that I saw at a military excise at Selfridge ANGB in July of 1987.  The two F4's appeared to be painted in a scheme similar to the others with the exception that the top of the nose and spine were a dark blue or blue-gray and the rest either a light gray or light blue-gray. The basic pattern was the same as the other USMC F4's of the time.  Thanks for any help.