Andrea Mantegna keeps values measured and balanced, a hallmark of tonal restraint. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. At 6.9%, #D26736 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. A value spread of 63 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Palette 6 sits within the larger chromatic argument that Andrea Mantegna's complete body of work advances.