You might like Left Right Black and Purple on Blue Sir Terry Frost 1969 Yellow Square Roland Piché 1969 Untitled (Purple, Red and Green) Michael Rothenstein 1959 Green and Purple Painting with Blue Disc : May 1960 Patrick Heron 1960 Purple Shape in Blue : 1964 Patrick Heron 1964 Yellow Attenuation Peter Sedgley 1965 Study for Homage to the Square: Departing in Yellow Josef Albers 1964 Square Design Sir Thomas Monnington 1966 Cambridge Green Mark Lancaster 1968 Red, Yellow and Blue 2 Noel Forster 1967 Composition in Red and Green, Squares and Circles Anwar Jalal Shemza 1963 Diminishing Square Thickness Ann Sutton OBE 1965