Values in William Barnes Wollen rest in the mid-range - neither dramatically lit nor steeped in shadow. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The saturated accent, #88603B, registers at 6.4% - sparse enough to feel like a deliberate surprise. The full value range is 69 units: broad enough to build convincing three-dimensional form. 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 4 of William Barnes Wollen's sequence - a single chapter in a chromatic story told across many works.