A dilute tortoiseshell is a coat pattern, not a breed. Instead of black and orange, the cat shows blue-gray and cream in patches or a fine marbled blend, often called blue-cream. The look comes from a recessive dilution gene plus the X chromosome, so nearly all dilute torties are female. Most are domestic shorthairs or longhairs, though the coloring also turns up in Persians, British Shorthairs and Maine Coons.
Because the pattern says little about personality, plan around the cat in front of you. Adults typically weigh 6 to 14 pounds and live 12 to 18 years, and shedding is moderate. In Santa Cruz, that means a long-term commitment, steady brushing and a home set up for an indoor cat, with perches, scratching posts and places to hide.