Joseph Wright is low-key throughout, a quality associated with Abyssal Sienna - deep shadows dominate the composition. Neither warm nor cool has the upper hand here; the equilibrium between the two generates the palette's visual energy. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The dominant colour, #080906, takes 51.5% of the total area, establishing the overall mood before any other hue is introduced. #B77630 delivers the chromatic peak at only 2.0% - a small shot of colour with outsized visual impact. A value spread of 66 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. This is palette 12 of Joseph Wright's sequence - a single chapter in a chromatic story told across many works.