This seascape has a pleasing, unified color palette. Complementary colors — such as the cool blues and warm yellows of the sky, and the vivid green and washes of lilac on the cliff — are juxtaposed. Yet a close-up look can make you wonder if your eyes are playing tricks on you, because the closer you get, the more the landscape dissolves into countless tiny daubs of paint. Seurat championed Pointillism, a methodical painting technique grounded in science and the study of optics. Up close your eye sees individual paint strokes, but stepping back, your eye and mind blend these spots into a full range of colors.