Andreas Achenbach distributes its values across the middle register, creating harmony without high contrast. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The most saturated colour, #4B3C23, is reserved to 11.1% of the surface, where it acts as a focal punctuation. The value range spans 56 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Palette 11 sits within the larger chromatic argument that Andreas Achenbach's complete body of work advances.