Low-key values are the structural spine of Josefa de Obidos, giving it gravity and atmosphere. Josefa de Obidos orchestrates warmth above all else - reds, ambers, and siennas take the lead. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #171214 at 44.4% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. The highest-chroma note - #64411B - appears at just 4.0%, deployed as a precision accent against the quieter ground. A value spread of 55 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Together these qualities place Josefa de Obidos firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display. Palette 3 sits within the larger chromatic argument that Josefa de Obidos's complete body of work advances.