Pierre Bonnard distributes its values across the middle register, creating harmony without high contrast. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The highest-chroma note - #9B6542 - appears at just 5.3%, deployed as a precision accent against the quieter ground. A value spread of 58 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. Pierre Bonnard's palette 13 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.