Robert Delaunay (Paris, 1885 - id., 1941) French painter. He began his pictorial career influenced by the work of Georges Seurat, then went through a brief fauvist stage and subsequently turned to his own and colorful style, based on the principles of analytic cubism. Robert Delaunay thoroughly investigated the relationships between form and color: the works that correspond to his period of maturity are characterized by the systematic use of circular shapes in flat colors, in order to provide movement to his compositions, as he learned from the theory of chromatic simultaneism of Chevreul.