portrait distributes its values across the middle register, creating harmony without high contrast. Warm and cool are kept in productive tension, creating the kind of chromatic harmony that sustains the eye. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The saturated accent, #B58C5C, registers at 6.0% - sparse enough to feel like a deliberate surprise. The full value range is 64 units: broad enough to build convincing three-dimensional form.