Compenetrazione quadrangolare di due ordini di chiarezze di tonalità nm 498 ca. (blu) e 587 ca. (ocra) , by mario ballocco , 1972 , abstract , Op Art style , Turquoise, Pattern, Rectangle, Line, Square
A picture of a square with a square in the middle of it.
A square is composed of many different shades of light blue, light brown, and dark brown. The light blue is in the center of the square, and the dark brown is on the edges. The square has a square in the middle of it. 