Blue pigments are substances that produce a blue color when used in paints, inks, and other materials. They can be derived from natural sources, such as minerals like lapis lazuli, or created synthetically, like Prussian blue and Ultramarine. These pigments have been used for centuries in art and decoration, providing vibrant hues. The use of blue pigments has evolved over time, with advancements in chemistry leading to the development of more stable and vibrant options. Today, artists and manufacturers can choose from a variety of blue pigments, each with unique properties and applications, enhancing creativity and expression in various fields.