A masterful exploration of color interaction and perception, this oil on masonite work by Josef Albers presents geometric fields of deep, nocturnal hues that seem to shift and vibrate against one another. True to Albers' lifelong investigation into the relativity of color, the painting evokes the mysterious, ambiguous quality of light after darkness falls. The hard-edged composition demonstrates his precise, methodical approach while simultaneously conveying an almost poetic atmospheric mood.