Going back to original

[Ultrasummer]

Hey guys.
I'm either a perfectionist, or maybe just an idiot. I've decided to change my tires/wheels again. This will make the 3rd complete set for my 1968 C10 stepside (swb). I'm trying to get close to the original look with the tires and wheels. The truck may not be much to look at but I'm not satisfied with the look of the wheels and tires I currently have on it. I've decided to go with a 15x6 wheel. I have the 1968 dogdish caps, and the tires should be easy enough. So my question is, what color were the wheels originally? I've looked at many pics. Some look silver, some look off white. Anyone know of the actual color name they used originally?