The palette of Thomas de Keyser sits in the lower register of the value scale - dense, contained, and weighted. Warmth dominates - the palette of Thomas de Keyser leans heavily on the yellow-orange-red arc of the colour wheel. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #201C18 at 52.3% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. The saturated accent, #BCA076, registers at 2.2% - sparse enough to feel like a deliberate surprise. The full value range is 66 units: broad enough to build convincing three-dimensional form. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. This is palette 3 of Thomas de Keyser's sequence - a single chapter in a chromatic story told across many works.