I have accumulated a number of wheels in the process of redoing the 53, I checked in the garage and have a myriad of colors, but two of the wheels I have still have the origianl pinstriping on them (I kept these to get the location, width, etc.), and neither of them are black, one is a dark blue and the other green, this leads me to saying the body color, unless the striping was part of a "deluxe" package and black was standard. File this in the for what it's worth folder.
Mike