The high-key values of Paul Jacoulet give it an effulgent, almost bleached quality. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. All colours lean toward grey, building depth through value rather than colour punch. The highest-chroma note - #52457B - appears at just 1.3%, deployed as a precision accent against the quieter ground. The value range spans 67 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Paul Jacoulet's full range of palettes, group 5 represents one movement in an ongoing chromatic dialogue.