The value structure of Alphonse-Marie-Adolphe de Neuville is mid-key: quiet, controlled, and cohesive. The palette achieves thermal balance - reds and blues, ochres and greens, each holding the other in check. All colours lean toward grey, building depth through value rather than colour punch. #C0A57A functions as the palette's exclamation mark: highest chroma, lowest percentage (10.0%). The full value range is 61 units: broad enough to build convincing three-dimensional form. The palette is recognisably Alphonse-Marie-Adolphe de Neuville's own: particular in its temperature, chroma, and the economy of its brightest note.