The value structure of William James Glackens is mid-key: quiet, controlled, and cohesive. William James Glackens tilts toward cool - blues and silver-greys carry the structural weight. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The most saturated colour, #291E19, is reserved to 10.3% of the surface, where it acts as a focal punctuation. A value spread of 57 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. This is palette 6 of William James Glackens's sequence - a single chapter in a chromatic story told across many works.