Fawn may range from a very light blonde, sometimes referred to as a silver fawn to a deep rich sand fawn, called golden or red fawn. Brindles come in the same fawn shades with black striping of more or less intensity. The dogs MUST have a black mask, no matter what the coat color. The mask should reach to just below the eyes, but not extend over them. The eyes should also have black pigmentation around them, but should be clearly separate from the mask on the muzzle.
Most specimens have white markings.
Black was an acceptable color in the breed in the past. It was never really favored and few perpetuated this color. While black dogs do still exist, their color is no longer allowed by the standard. It is only rare because it is not allowed, and few breeders strive to breed for faults. This is not the same thing that grey refers to in the standard.