Where does blue paint come from?

Blue paint can be made from various pigments, with one of the most common sources being the mineral azurite, which is a natural blue pigment. Another popular source is synthetic pigments like phthalocyanine blue, which is created through chemical processes. Additionally, some blue paints may use ultramarine, originally made from lapis lazuli, a semiprecious stone. The choice of pigment affects the paint's hue, opacity, and durability.