Basic Blue 1 is widely used as a dye in various industries. In the textile sector, it is employed for coloring fabrics, particularly those made of cotton, silk, and wool, due to its ability to produce vibrant blue shades. It is also utilized in the paper industry for dyeing paper products, providing consistent and long-lasting coloration. Additionally, Basic Blue 1 finds application in biological staining, where it helps in highlighting cellular structures under microscopic examination. Its use extends to the leather industry for dyeing leather goods, ensuring a uniform and rich blue finish. The dye is valued for its stability and effectiveness across these diverse applications.