Robert Delaunay introduced vivid colors to this "geometric" movement, beginning a trend called Orphism
... based on the colour 
theory known as the "Law of Simultaneous Contrast of Colours," pioneered ... 
when he began producing Cubist-style works with vivid colours instead of the 
trendy browns... [DOC] [TLE] Abstract Art Movements: Cubism, De Stijl, Action Painting [PAR] Abstract Art Movements, Periods (1870-2000): Non-Objective Style of Visual ... 
and action-painting, to organic abstraction, colour field painting and word art.