Pierre Bonnard is strongly light-biased - shadow is suggested rather than declared. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. #8495C2 delivers the chromatic peak at only 6.8% - a small shot of colour with outsized visual impact. The value range spans 63 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. Palette 4 sits within the larger chromatic argument that Pierre Bonnard's complete body of work advances.