Which statement best describes tonal underpainting?

• A. Tonal underpainting is done with one color of paint to establish the layout and tones.
• B. Tonal underpainting uses multiple colors
• C. Tonal underpainting is a finishing glaze
• D. Tonal underpainting is only for watercolor

Answer: (A)

Tonal underpainting is a monochromatic planning step that maps the light and dark relationships before color is added. By painting in a single color (often a neutral like burnt umber), you establish the overall layout and the value structure of the composition, which guides contrast, form, and subsequent color choices. That’s why using one color to establish tones and layout is the best description—it captures both the method and its purpose. Using multiple colors would muddle the value map, treating the underpainting as if color were already present. A finishing glaze explains a later coating, not the initial planning stage, and tonal underpainting isn’t limited to watercolor; it’s a common approach in oils and other media as well.