noun, noun which may take the genitive case particle 'no'
indigo blue; azurite blue
A deep blue color, often used in artistic or descriptive contexts. Can refer to the pigment or the hue itself.
彼女は藍青色のドレスを着ていた。
She wore an indigo blue dress.
この絵の具は藍青色に
This paint can produce a color close to azurite blue.