The value structure of Claude Monet is mid-key: quiet, controlled, and cohesive. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. At 6.0%, #81584D carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. Value range is moderate at 46 units - enough contrast for legibility, not so much as to fragment the tonal unity. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 15 sits within the larger chromatic argument that Claude Monet's complete body of work advances.