One of six monumental shaped reliefs comprising 'The Chicago Panels' (1989–1999), this orange panel exemplifies Ellsworth Kelly's lifelong ambition to fuse painting with architecture. The work's curved upper edge and irregular contours give the single chromatic field an object-like, architectural body that activates the surrounding wall as a spatial field. Conceived for the Art Institute of Chicago's Rice Building, the suite — black, red, yellow, blue, orange, and green — operates as a calibrated ensemble in which color shifts from isolated form to spatial rhythm as one moves between panels. Held in the permanent collection of the Art Institute of Chicago, the series stands as one of Kelly's most lucid realizations of color as structure.