Franklin Booth distributes its values across the middle register, creating harmony without high contrast. Franklin Booth tilts toward cool - blues and silver-greys carry the structural weight. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. Only 4.8% is devoted to #151A1B, yet that small allocation delivers the palette's entire chromatic tension. The value range spans 56 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is the light Franklin Booth preferred, made measurable.