The value structure of Frank W. Benson is mid-key: quiet, controlled, and cohesive. Frank W. Benson builds on cool foundations: the palette favours the blue-cyan-green arc. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #8E9393 at 28.7% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. The saturated accent, #B78C4E, registers at 2.9% - sparse enough to feel like a deliberate surprise. A value spread of 60 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. 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 Frank W. Benson's full range of palettes, group 6 represents one movement in an ongoing chromatic dialogue.