Alphonse Mucha is high in key: pale, luminous, and filled with optical air. Temperature is cool-dominant, with blue and green families claiming the largest areas. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. Alphonse Mucha gives 27.3% of the composition to a single #D9D2BF - a decisive chromatic anchor. The most saturated colour, #C9B883, is reserved to 3.2% of the surface, where it acts as a focal punctuation. At 53 units across the value scale, the palette keeps contrast readable without letting it dominate. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Alphonse Mucha's full range of palettes, group 2 represents one movement in an ongoing chromatic dialogue.