The value structure of Gustave Buchet is mid-key: quiet, controlled, and cohesive. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The saturated accent, #C0A376, registers at 3.7% - sparse enough to feel like a deliberate surprise. A value spread of 72 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 2 of Gustave Buchet's sequence - a single chapter in a chromatic story told across many works.