64 Chev C10 bumper and grill color?

[adams_40_2000]

I have just bought a 1964 Chev Trk. the original color is off-white what color are the grill and bumpers suppose to be? Right now the grill is black, but so is the rest of the truck, the front bumper is chrome, and the rear bumper is a steel dealer bumper.

 

[78subgeorge]

My Dad's truck was a beige color. The grille & front bumper were off-white; it had a dealer-installed step bumper on the rear.