Born in 1927 in Saint-Cyr-l'Ecole, Paris, France, Jacques Colas-Guerin lives and works in the Alpilles in Saint-Rémy-de-Provence. After attending the Montparnasse workshops, he joined the Ecole Supérieure des Beaux-Arts in Paris. He traveled to Europe, Greece, Morocco and then in 1954 settled in Provence and set up his studio-house in an old sheepfold, surrounded by landscapes that became a great source of inspiration for him. He exhibited at the Galerie du Haut Pave in 1959, and he was married to Marie-Therese Colas, a sculptor and ceramicist.
Colas-Guerin is known primarily as a painter, though he also works with printmaking, tapestries and stained glass.