La ricerca del colore , by dadamaino , 1968 , abstract , Op Art style , Tile, Pattern, Line, Tints and shades, Tile flooring
A large collection of color samples of various shades of blue, red, yellow and purple.
 a large collection of color swatches arranged in rows and columns on a white background. Each row has different shades of blue, purple, pink, red, orange, yellow, green, blue and black. The colors are arranged in a grid like pattern. Each of the rows has a small amount of the same shade of color in it.