The value structure of Sebastiano Conca is mid-key: quiet, controlled, and cohesive. Sebastiano Conca tilts toward cool - blues and silver-greys carry the structural weight. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The saturated accent, #614B3C, registers at 8.9% - sparse enough to feel like a deliberate surprise. Spanning 51 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Sebastiano Conca's palette 2 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.