Entrance of La Rochelle Harbor

La Rochelle's Atlantic harbour provided Signac with one of his most favoured recurring motifs, and he painted it at different periods across his career. This 1921 canvas, now at the Musée d'Orsay, belongs to his late harbour series and represents his mature divisionist method applied to a site he knew intimately. La Rochelle's wide harbour, its defensive towers at the entrance, and the quality of Atlantic light on water made it one of the most compositionally rich sites in his extensive repertoire of French ports and seacoasts.

The harbour entrance towers serve as firm vertical anchors in a composition otherwise dominated by horizontal expanses of water and sky. Signac applies dots of complementary colour — blues against oranges, greens against reds — with systematic precision.