The value structure of Francesco Hayez is mid-key: quiet, controlled, and cohesive. Francesco Hayez orchestrates warmth above all else - reds, ambers, and siennas take the lead. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. #8F5C3F functions as the palette's exclamation mark: highest chroma, lowest percentage (8.1%). The full value range is 63 units: broad enough to build convincing three-dimensional form. This is the light Francesco Hayez preferred, made measurable.