瑠 - lapis lazuli

lapis lazuli

sapphire devil (Chrysiptera cyanea)

blue-glazed roof tile

scarlet pimpernel (Anagallis arvensis)

gold-ribbon grouper (species of fish, Aulacocephalus temmincki)

elongate janthina (Janthina globosa)

superb blue-wren (Malurus cyaneus); superb fairywren; blue wren

jōruri; type of dramatic recitation accompanied by a shamisen (associated with Japanese puppet theater)

indigo bunting (Passerina cyanea)

Siberian blue robin (Luscinia cyane)

beryl

blue-and-white flycatcher (Cyanoptila cyanomelana)