Tonalism is a painting style that emerged in the late 19th century in America. It is characterized by a subdued, atmospheric quality and a tonal harmony that evokes a sense of calm and tranquility. Tonalist paintings are often landscapes, depicting a quiet, serene scene, often with a soft, diffused light.

One of the defining characteristics of Tonalism is its use of color. Tonalist painters often used a limited color palette, with muted, earthy tones dominating the composition. This gives the paintings a subtle, understated quality that draws the viewer in and invites contemplation.

Another important element of Tonalism is the use of light. Tonalist painters often portrayed landscapes at dawn or dusk, when the light is soft and diffused. This creates a sense of stillness and tranquility, inviting the viewer to pause and reflect.

Tonalism had a significant impact on the art world and on viewers. It marked a departure from the bright, bold colors and dramatic compositions of earlier movements like the Hudson River School. Tonalism was a reaction against the industrialization and rapid urbanization of America, a longing for a simpler, more peaceful way of life.

Tonalist paintings have a soothing effect on viewers, inviting them to slow down and appreciate the beauty of the natural world. They have been described as "visual meditations," providing a moment of respite from the chaos and noise of modern life.