Dilute calico describes a coat, not a breed: white with patches of soft blue-gray and cream, the pastel version of the classic black, orange and white calico. The pale shades come from two copies of a recessive dilution gene, and the amount of white ranges from a little on the paws to most of the body. Nearly all are female, since the orange color gene sits on the X chromosome.
Most dilute calicos in Denver homes are domestic shorthairs or longhairs, though the pattern also turns up in Persians, Maine Coons and British Shorthairs. Color says little about personality, so a cat's age and background matter more than her patches. Longhaired cats need more brushing, and indoor life suits almost all of them, with scratching posts and places to climb.