Johannes Vermeer is low-key throughout, a quality associated with Nocturnal Sienna - deep shadows dominate the composition. Warmth dominates - the palette of Johannes Vermeer leans heavily on the yellow-orange-red arc of the colour wheel. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. Johannes Vermeer gives 30.2% of the composition to a single #120E0E - a decisive chromatic anchor. The highest-chroma note - #73502F - appears at just 5.5%, deployed as a precision accent against the quieter ground. At 69 units of value range, the palette has the tonal breadth to sustain complex spatial readings. This tonal restraint is characteristic of the Johannes Vermeer approach: colour serves light, not the reverse. In the context of Johannes Vermeer's full range of palettes, group 6 represents one movement in an ongoing chromatic dialogue.