Light floods Louis Marcoussis; the palette keeps values pale and airy across its range. Louis Marcoussis tilts toward cool - blues and silver-greys carry the structural weight. All colours lean toward grey, building depth through value rather than colour punch. The most saturated colour, #8CB1E5, covers 23.8% of the surface: too much to call an accent, too strong to ignore. The value range spans 70 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 1 sits within the larger chromatic argument that Louis Marcoussis's complete body of work advances.