'Sometimes considered part of the visible spectrum, it's also a deep blue dye used to color cotton & wool'
indigo
ON THE GO: Sometimes considered part of the visible spectrum, its also a deep blue dye used to color cotton & wool
Sometimes considered part of the visible spectrum, it's also a deep blue dye used to color cotton & wool
Sometimes considered part of the visible spectrum, it's also a deep blue dye used to color cotton & wool
ON THE "GO"
indigo
ON THE "GO"