Colombian painter, sculptor and caricaturist Omar Rayo employed abstract geometry and a restricted palette of black, white, red and yellow in his artistic practice. Part of the Op Art movement, Rayo was concerned with demonstrating the continued relevance of geometric art to society and our ideas of the future. The Museo Rayo de Dibujo y Grabado Latinoamericano was founded by Rayo in his hometown of Roldanillo, Valle del Cauca, in 1981.