Sonia Delaunay (Odessa, Ukraine, 1885 – Paris, France, 1979) spent her career dissolving the boundary between painting and the rest of modern life, applying the same theory of color to canvas, clothing, textiles, and interiors until none of these registered as a lesser application of the other.

She trained at the Academy of Fine Arts in Karlsruhe before moving to Paris, where Fauvism and Cubism pushed her toward non-objective color. She married the painter Robert Delaunay in 1910, and the two developed Orphism together, though Sonia came to prefer the term "Simultaneous Contrasts," describing how identical colors and shapes shift according to what surrounds them. After making a quilt for their infant son Charles in 1911, patterned after Russian peasant blankets, she began applying the same pieced, patchwork logic to painting: Le Bal Bullier (1913) translates the movement and electric light of a Parisian dance hall into rhythmic arcs of contrasting color, a canvas she developed alongside the "simultaneous dress" she designed that same year for wear at the very dance hall it depicts, a piece the poet Guillaume Apollinaire called "a living painting."