Arnold Böcklin distributes its values across the middle register, creating harmony without high contrast. Temperature is cool-dominant, with blue and green families claiming the largest areas. All colours lean toward grey, building depth through value rather than colour punch. #B5B8B0 claims 30.2% of the surface, functioning as the work's tonal foundation. The saturated accent, #A38354, registers at 3.3% - sparse enough to feel like a deliberate surprise. From deepest dark to palest light, the palette traverses 62 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is palette 9 of Arnold Böcklin's sequence - a single chapter in a chromatic story told across many works.