Utsuri, the accepted name for this category is shortened from the formal name of Utsurimono, which literally translates as ‘reflections’ or ‘reflective ones’. There are three variants of Utsuri which are all a karasu (black bodied) koi with one of either; hi (red), shiroji (white), or ki (yellow) markings.
The Utsuri class became recognised around 1925 as the colouration's stabilised.