The palette of Ferdinand Bol sits in the lower register of the value scale - dense, contained, and weighted. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. 31.4% of the palette belongs to #0E0D0B, a concentration that makes it the unmistakable visual centre. The saturated accent, #371E16, registers at 7.4% - sparse enough to feel like a deliberate surprise. The value range spans 57 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. Together these qualities place Ferdinand Bol firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display. Palette 9 sits within the larger chromatic argument that Ferdinand Bol's complete body of work advances.