This category of koi features a black base color with distinctive triangular patches of white, yellow, or red.
(1) Shiro Utsuri
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A black koi with triangular white patches.

(2) Ki Utsuri
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A black koi with triangular yellow patches.

(3) Hi Utsuri
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A variant of Ki Utsuri where the yellow is intensely saturated, appearing closer to orange-red.

(4) German Utsuri
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Developed by crossbreeding German mirror carp (Doitsugoi) with Japanese Utsurimono. It retains the scaleless or partially scaled skin of the mirror carp, combined with the Utsurimono’s classic black-and-triangular-pattern coloration.