The value structure of John Boultbee is mid-key: quiet, controlled, and cohesive. John Boultbee tilts toward cool - blues and silver-greys carry the structural weight. All colours lean toward grey, building depth through value rather than colour punch. The saturated accent, #C79B68, registers at 6.4% - sparse enough to feel like a deliberate surprise. The value range spans 58 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of John Boultbee's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.