Neo-Impressionist method is an attempt is made to achieve the richness of the sunlight spectrum with all its tones. An orange that blends with yellow… - Paul Signac

Divisionism is a complex system of harmony, an aesthetic rather than a technique.
The point is only a means.
To divide is to seek the power and harmony of color, through representing colored light by pure elements, and through employing the optical mixture of these pure elements, separated and proportioned according to the essential laws of contrast and graduation.

It seems that the first consideration of a painter who stands before the white canvas should be to decide what curves and arabesques should cut the surface, what tints and tones should cover it.. .Following the precepts of Delacroix he would not begin a composition until he had first determined its organization. Guided by tradition and by science, he would adjust the composition to his conception, that is to say he would adapt the lines (directions and angles), the chiaroscuro (tones), the colors (tints), to the traits he wished to make dominant.

We have never heard Seurat, Cross, Luce, Van de Velde or indeed Van Rysselberghe or Angrand speak of dots. We have never seen them be preoccupied by Pointillism. Read these lines, dictated by Seurat to Jules Christophe, his biographer: 'Art is harmony; harmony is the analogy between opposites and between similar elements of tone, tint and line. By tone I mean light and dark; tint is red and its complementary: green, orange and its complementary: blue, yellow and its complementary: purple.. .The method of expression relies on the optical mixture of tones, tints and their reactions (shadows that follow very strict rules).