Art Lesson: Broken Color Painting. Learn about the classic technique of broken color. Refined by impressionists such as Monet, this technique has been used for years to capture the actual sensation of the light. The painter does not blend any of these brushstrokes. Instead, the viewer is allowed to "visually mix" these brushstrokes to view a whole image. Each brushstroke is allowed to remain separate. The length of the brushstrokes may vary. Brushes are frequently cleaned to allow a clean color with thick paint. The effect of keeping colors separate can create a sense of colors vibrating against each other for a shimmering effect.