This article is from the Japanese Bobtails Breed FAQ, by Jean Marie Diaz firstname.lastname@example.org.
The most popular color for a female Japanese Bobtail is calico, known
to the Japanese as _mi-ke_ (pronounced "mee-kay"). Red and white, and
black and white, are common colors for both sexes. Solid-colored cats
without white markings (black, blue, red, cream, tortoiseshell, solid
white), tabbies (brown tabby, red tabby, blue tabby, cream tabby,
patched tabby or patterned mi-ke) and dilutes (blues, creams,
blue-creams, dilute mi-kes) exist, but are harder to find. Many
Japanese Bobtails with a lot of white are either blue-eyed or odd-eyed
(one blue and one gold eye); this is a flashy and popular color, and
such kittens are generally more expensive.
Smokes and silvers, while allowed colors, have not turned up in the
North American gene pool. As the Bobtail is an Asian breed, some
registries allow the pointed (Siamese) and sepia (Burmese) colors, and
some do not. Since imports from Japan can still be registered, the
gene pool is still open to native cats.