Dyes and pigments are substances used to impart color to materials. Dyes are soluble and can penetrate the fibers of textiles, making them ideal for coloring fabrics. They are often used in the textile industry and can be derived from natural sources, like plants, or created synthetically. Pigments, on the other hand, are insoluble particles that provide color by reflecting light. They are commonly used in paints, inks, and plastics. Unlike dyes, pigments do not dissolve in the medium they color, which makes them suitable for a wide range of applications, including art supplies and cosmetics.