The value structure of Pietro da Cortona is mid-key: quiet, controlled, and cohesive. Warm hues command this palette; Pietro da Cortona favours the reds, oranges, and yellows of firelight and earth. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. A single dominant - #201B18 at 31.0% - sets the character of the whole composition. Only 1.9% is devoted to #A0472E, yet that small allocation delivers the palette's entire chromatic tension. At 66 units of value range, the palette has the tonal breadth to sustain complex spatial readings. Pietro da Cortona's palette 3 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.