The work of Monet's gradient colors

Quick answer：

Claude Monet, a prominent figure in the Impressionist movement, is known for his use of gradient colors. This technique, often referred to as 'en-plein-air' painting, involves the application of colors in soft, blending gradients to create a sense of depth and light. Monet's works, such as 'The Water Lilies' and 'Rouen Cathedral,' exemplify this style, where the transition between colors is fluid and the focus is on the play of light and atmosphere.