Victor Vasarely, (Győző Vásárhelyi), (born April 9, 1908, Pécs, Hungary—died March 15, 1997, Paris, France) Hungarian-born French painter of geometric abstractions who became one of the leading figures of the Op art movement.Vasarely was trained as an artist in Budapest in the Bauhaus tradition. In 1930 he left Hungary and settled in Paris, where he initially supported himself as a commercial artist but continued to do his own work. During the 1930s he was influenced by Constructivism, but by the 1940s his characteristic style of painting animated surfaces of geometric forms and interacting colours had emerged. His style reached maturity in the mid-1950s and 1960s, when he began using brighter, more vibrant colours to further enhance the suggestion of movement through optical illusion. Representative works include Sirius II (1954), Ondho (1956–60), and Arny-C (1967–69). Vasarely became a naturalized French citizen in 1959. Much of his work is housed in the Vasarely Museum at the Château de Gourdes, in southern France, and in the Vasarely Museum in Budapest. In 1970 he established the Vasarely Foundation, which in 1976 took up quarters near Aix-en-Provence in a building that he designed.