Values in Pierre-Paul Prud'hon rest in the mid-range - neither dramatically lit nor steeped in shadow. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #191E26 claims 27.8% of the surface, functioning as the work's tonal foundation. The saturated accent, #E2CD8D, registers at 3.7% - sparse enough to feel like a deliberate surprise. A value spread of 70 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Pierre-Paul Prud'hon's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.