藍 - indigo

dyer's knotweed (Persicaria tinctoria, used to produce indigo dye)

blue-green bacterium; cyanobacteria; cyanobacterium

earthenware pot for storing indigo dye

indigo-dyed leather

stencil dyeing produced with various shades of indigo

indigo-dyed paper; indigo paper

Mercurialis leiocarpa (species of mercury whose leaves can be used to produce an indigo dye)

indigo blue make-up used in kabuki

aquamarine

indigo blue; indigo

ukiyo-e print produced with various shades of indigo (and sometimes small amounts of vermilion or yellow)

deep indigo