shape through colour (kandinsky’s shape/colour theory)
According to Kandinsky certain colors have an affinity for certain forms. A dull shape like a circle deserves a dull color like blue. A shape with intermediate interest like a square deserves an intermediate color like red. A dynamic, interesting shape like a triangle deserves an enegetic, luminous, psychotic color like yellow. A hexagon is midway in interest between a square and a triangle so it gets the midway color it deserves, orange. Toilet cover seats get green.