Used as a dye in textile industries, particularly for dyeing cotton, wool, and silk fabrics. Provides a bright blue color with good fastness properties. Also applied in the printing of textiles using dye-based ink formulations. Suitable for use in direct dyeing processes without the need for mordants. Shows compatibility with other dyes in mixture formulations for achieving various shades. Employed in laboratory settings for staining and coloration in certain analytical procedures.