The value structure of John Simpson 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. 23.3% of the palette belongs to #191616, a concentration that makes it the unmistakable visual centre. The most saturated colour, #D0A559, is reserved to 8.3% of the surface, where it acts as a focal punctuation. The value range spans 68 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. The palette is a signature: John Simpson's particular sense of value, warmth, and colour weight made legible.