The value structure of John Singleton Copley is mid-key: quiet, controlled, and cohesive. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. 27.3% of the palette belongs to #E9E7E5, a concentration that makes it the unmistakable visual centre. At 3.5%, #9C5E26 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. The value range spans 69 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. Palette 10 sits within the larger chromatic argument that John Singleton Copley's complete body of work advances.