The Curly Coated Retriever breed standard strictly dictates that the only acceptable colors are:
* Black: A deep, solid black coat with no markings.
* Liver: A rich, deep liver color, which is a shade of brown, with no markings.
While you might find some individual dogs that appear lighter or have a slight golden tint, these are not considered true golden or yellow Curly Coated Retrievers. These variations may be due to individual genetics or less than ideal breeding practices, but they are not recognized by breed standards.