"The artworks of the so called Color Field painters dramatically enlarged the meaning of the label 'Abstract Expressionism', but through the clarifying lens of hindsight, they also seem to prefigure ideas.. ..of the loosely associated, aesthetically and chronologically divers group who came to be categorized under the rubric 'Color Field'. These were the painters – among them, Helen Frankenthaler, Morris Louis, Kenneth Noland and Jules Olitski – whose work was include in the exhibition 'Post Painterly Abstraction' [Los Angeles, 1964, curated by Clement Greenberg."