Tonalism is built on dark foundations, with values clustered toward shadow. Yellow, ochre, sienna: warm hues deployed as the palette's primary energy. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The palette gives 26.5% of the composition to a single #26211C - a decisive chromatic anchor. The saturated accent, #7B6027, registers at 3.5% - sparse enough to feel like a deliberate surprise. At 50 units across the value scale, the palette keeps contrast readable without letting it dominate. This tonal restraint is characteristic of the Tonalist sensibility: colour serves light, not the reverse.