Divisionism
Divisionism (also called Chromoluminarism) was the characteristic style in Neo-Impressionist painting defined by the separation of colors into individual dots or patches which interacted optically.
By requiring the viewer to combine the colors optically instead of physically mixing pigments, Divisionists believed they were achieving the maximum luminosity scientifically possible. Georges Seurat founded the style around 1884 as chromoluminarism, drawing from his understanding of the scientific theories of Michel Eugène Chevreul, Ogden Rood and Charles Blanc, among others. Divisionism developed along with another style, Pointillism, which is defined specifically by the use of dots of paint and does not necessarily focus on the separation of colors.
Theoretical foundations and development
Divisionism developed in nineteenth-century painting as artists discovered scientific theories of vision that encouraged a departure from the tenets of Impressionism, which at that point had been well-developed. The scientific theories and rules of color contrast that would guide composition for Divisionists placed the movement of Neo-Impressionism in contrast with Impressionism, which is characterized by the use of instinct and intuition. Scientists or artists whose theories of light or color had some impact on the development of Divisionism include Charles Henry, Charles Blanc, David Pierre Giottino Humbert de Superville, David Sutter, Michel Eugène Chevreul, Ogden Rood and Hermann von Helmholtz.