Leon Pourtau was a French post-impressionist painter active from 1890 to 1898. The document discusses five of Pourtau's paintings, analyzing their color schemes and techniques. It notes that Pourtau often used layers of dabs of different colored paints blended together, and that he was interested in how light affected compositions both outdoors and indoors at different times of day. His works displayed color schemes including analogous, complementary, monochromatic, and triadic.