Dyes and pigments are substances used to color other materials, but they differ in their molecular structure and method of coloring.

Both dyes and pigments have their own unique properties and limitations. Dyes are often more vibrant and intense in color, but they can fade over time and with exposure to light and other environmental factors. Pigments are often more stable and durable, but they can also be less intense in color compared to dyes. The choice between a dye and a pigment often depends on the desired end-use and the specific requirements of the application.