Cuban painter Rafael Soriano — an abstract artist known for his deft handling of light, color and depth — died Thursday morning in his Miami home, surrounded by loved ones. He was 94.

Since his first steps into the realm of painting in the 1940's, Soriano immersed himself in abstractionism and soon became one of the primary practitioners of concrete art in Cuba and Latin America. Between 1958 and 1961 he was part of the renowned group of Ten Concrete Artists, which included Carmelo López, Wilfredo Arcay, Salvador Corratgé, Sandú Darié, Luis Martínez Pedro, Pedro de Oráa, Loló Soldevilla, José María Mijares and José Rosabal. Throughout the 1950s it was common to see his work at national exhibits of painting, sculpture and engraving in...