Dilute tortoiseshell describes a coat, not a breed. The blue-gray and cream patches come from a recessive dilution gene, and the patchwork depends on two X chromosomes, so nearly all dilute torties are female. Most are domestic shorthairs or longhairs, though the coloring also appears in Persians, British Shorthairs and Maine Coons.
Coat color says little about personality, despite the tortitude folklore. Dilute torties range from shy to outgoing and from cuddly to independent, so a cat's age, history and behavior matter more than its pattern. Expect moderate shedding, a weight of roughly 6 to 14 pounds and a lifespan of 12 to 18 years. In Kansas City, that mostly means planning for an indoor life, regular vet care and a brushing routine if the cat has longer fur.