Labradors Retrievers are relatively large with males typically weighing 60 to 80 lb (27 to 36 kg) and females 45 to 70 lb (23 to 32 kg). They are energetic and outgoing dogs. Their coats are short and smooth, and can be black, yellow, or brown (called "chocolate") in color, in that order of frequency. Puppies of all colors can potentially occur in the same litter. Yellow labs can have black or pink noses; chocolate and black labs's noses match the coat color. A very light color sometimes called 'silver' is not officially recognized, but is sought by some owners and therefore unusually light colored yellow and chocolate labs may be described this way by unscrupulous breeders.