Ellsworth Kelly's 1971 painting Chatham XI: Blue Yellow at Albright-Knox Art Gallery

Ellsworth Kelly created Chatham XI: Blue Yellow in 1971, an oil painting on canvas composed of two joined panels measuring 90 inches by 77 inches. The work is part of the collection at the Albright-Knox Art Gallery in Buffalo, New York, having been donated by Seymour H. Knox, Jr. This information was published on August 28, 2013, through artcritical's platform. The painting represents Kelly's exploration of color and geometric abstraction during his career. Its dimensions and medium reflect his characteristic approach to form and composition. The artwork remains under copyright protection held by the artist. Photographic documentation of the piece is credited to the Albright-Knox Art Gallery and Art Resource, New York.