Organic dye is a type of dye that is derived from natural sources such as plants, animals, and minerals. The most common type of organic dye is known as an azo dye, which is composed of nitrogen-containing compounds. Azo dyes are used in a variety of applications, including fabric dyeing, printing, and food coloring. They are also used in the production of cosmetics, pharmaceuticals, and other products. Organic dyes are generally considered to be more environmentally friendly than synthetic dyes, as they do not contain any hazardous chemicals.