What must the Wheaten Terrier's adult coat color never be, according to official standards?

Answer

Purely red or purely white

The defining color for the adult Soft Coated Wheaten Terrier is naturally 'wheaten,' which is a shade evocative of ripening wheat, spanning from pale beige to shimmering gold. While puppies exhibit darker colors and adult coats might retain some residual darker guard hairs mixed in, official standards explicitly delineate boundaries for the acceptable adult hue. Specifically, the coat should never present as being purely red or purely white. Any coat that is entirely one of these two extremes fails to meet the required standard for the breed's signature color.

What must the Wheaten Terrier's adult coat color never be, according to official standards?
appearanceDogcharacteristicbreedwheaten terrier