It has a grey, black and tan coat, and the breed's nickname is Yorkie. The Yorkshire Terrier is a tan dog with a blue saddle. Some Yorkshire Terriers are solid golden, they only produce pheomelanin, others are liver or chocolate, a brown colour; they produce brown eumelanin instead of black eumelanin. Owners may trim the hair short for easier care. For shows, the coat is left long, and may be trimmed to floor length to give ease of movement and a neater appearance.