John Singleton Copley sits in the centre of the value range, lending the palette a sense of even, sustained light. Temperature is cool-dominant, with blue and green families claiming the largest areas. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. 39.3% of the palette belongs to #373329, a concentration that makes it the unmistakable visual centre. Only 5.5% is devoted to #D0AA6B, yet that small allocation delivers the palette's entire chromatic tension. The value range spans 66 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. In the context of John Singleton Copley's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.