The value structure of Pompeo Mariani is mid-key: quiet, controlled, and cohesive. Warm hues command this palette; Pompeo Mariani favours the reds, oranges, and yellows of firelight and earth. A restrained, mid-chroma palette: every hue is present and legible, but nothing shouts. The most saturated colour, #976B40, covers 7.0% of the surface: too much to call an accent, too strong to ignore. Value range is moderate at 46 units - enough contrast for legibility, not so much as to fragment the tonal unity. This is palette 4 of Pompeo Mariani's sequence - a single chapter in a chromatic story told across many works.