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

temple (esp. large one), monastery, temple building

Medal with Blue Ribbon

indigo blue, indigo

blue-green algae, cyanobacteria

indigo dye

any shark of genus Centrophorus (esp. the dwarf gulper shark, Centrophorus atromarginatus)

mottled spinefoot (Siganus fuscescens), dusky rabbitfish, sandy spinefoot

indigo

indigo

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

ukiyo-e print produced with various shades of indigo (and sometimes small amounts of vermilion or yellow), staining a pattern on fabric or paper by rubbing it with indigo leaves

indigo-dyed leather

stencil dyeing produced with various shades of indigo

indigo-dyed paper, indigo paper, spiderwort-dyed paper

earthenware pot for storing indigo dye

indigo blue make-up used in kabuki

mixture of lime and fermented indigo leaves after the indigo dye has precipitated from the leaves (byproduct in the process of creating indigo dye)

mixture of lime and fermented indigo leaves after the indigo dye has precipitated from the leaves (byproduct in the process of creating indigo dye)

indigo wax, cylindrical shape made from indigo dye froth, often by boiling the froth with caustic soda...

indigo wax, cylindrical shape made from indigo dye froth, often by boiling the froth with caustic soda...

indigo wax shaped as an inkstick

indigo-dyed leather

indigo-dyed leather

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

green-cracking russula (Russula virescens), quilted green russula, green brittlegill

aquamarine

indigo-tinged grey (gray)

scum formed near the end of the indigo fermentation process, Asiatic dayflower (Commelina communis)

dark steel blue