quick color question?

Nearly always black, being a tanker. Wouldn't be unheard of, I suppose, for them to have donned the field gray variant occassionally, but you can't go wrong painting it black.

I want to say SS tankers always wore black hats.  I can't say for sure but if no one else says anything then at least someone else is thinking black.

I almost added that, but I know that black was the traditional tanker uniform, regardless of branch, save for perhaps the Luftwaffe panzer units (I'd have to check my references there).

Depends on the period.  Late war, anything goes.  Otherwise it would seem black black black.

The hat mentioned is an M1943 cap I believe , nearly always black for panzermen, field grey for stug/ jagd guys( mistake in band of bros  I saw yesterday with a stug crew ) .    But who is to say  one didn't get tossed into a stug or vice versa , I am sure it happened especially at wars end .   Some of these caps were various camo colors as well .