Values in Jan Provoost rest in the mid-range - neither dramatically lit nor steeped in shadow. Jan Provoost 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. Only 10.7% is devoted to #4D3713, yet that small allocation delivers the palette's entire chromatic tension. A value spread of 59 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. Palette 4 sits within the larger chromatic argument that Jan Provoost's complete body of work advances.