While still in Holland during World War I, Mondrian helped found the group of artists and architects called De Stijl, and it was during this period he refined his style of abstraction even further. Composition with Color Planes shows his break with Analytic Cubism led by Picasso and exemplifies the principles he expressed in his essay "The New Plastic in Painting."
Here, Mondrian has moved away from the Cubist palette of ochres, grays, and browns, opting instead for muted reds, yellows and blues - a clear precursor to his mature palette that focused on primary colors. The blocks of color float on a white ground and no longer reference a physical object in nature such as a tree or building, while all reference to illusionistic depth has been eliminated. The composition is based on color and balance and gives even weight to all areas of the picture surface, moving toward the precise balance of his mature canvases.