Paul Jacoulet is strongly light-biased - shadow is suggested rather than declared. Temperature is cool-dominant, with blue and green families claiming the largest areas. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The highest-chroma note - #B18D65 - appears at just 7.2%, deployed as a precision accent against the quieter ground. A value spread of 61 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. Paul Jacoulet's palette 3 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.