Hard-Edge

'Abstract classical painting is hard-edged painting.Forms are finite,flat,rimmed by a hard clean edge.These forms are not intended to evoke in the spectator any recollection of specific shapes he may have encountered in some other connection.They are autonomous shapes sufficient onto themselves as shapes.'                        
                                                                                                                   
                                                                                                                                 Jules Langsner
 Hard-edge painting formed in late 1950s and 1960s.It is closely related to Post Painterly Abstraction and color field painting.It describes an abstract style that combines the clear composition of geometric abstraction
with the intense color and bold, unitary forms of colorfiled painting.It was first identified with Californian artists.
 Hard-edge abstraction was part of a general tendency to move away from the expressive qualities of gestural abstraction. Many painters also sought to avoid the shallow, post-Cubist space of Willem de Kooning's work, and instead adopted the open fields of color seen in the work of Barnett Newman.
Hard-edge painting is known for its economy of form, fullness of color, impersonal execution, and smooth surface planes.
The term "hard-edge abstraction" was devised by Californian art critic Jules Langsner, and was initially intended to title a 1959 exhibition that included four West Coast artists - Karl Benjamin, John McLaughlin, Frederick Hammersley and Lorser Feitelson. Although, later, the style was often referred to as "California hard-edge," and these four artists became synonymous with the movement, Langsner eventually decided to title the show Four Abstract Classicists (1959), as he felt that the style marked a classical turn away from the romanticism of Abstract Expressionism. 

The Van Doesburg.Counter composition V,1924