Koi color
Blau
In coats and feathers the fanciers' blue: a dilution of black that looks slate gray, as in blue dogs, Russian Blue cats, blue rabbits and blue pigeons. In eyes and eggshells a true blue.
3 Koi breeds list Blau. It is in a club standard for 1 breed.
Breeds whose standards accept Blau
| Breed | JNPA |
|---|---|
| KoiAsagi | Standardgemäß (“blue, such as indigo or sky blue”) |