Cagnaccio di San Pietro is high-key - luminous, open, and weighted toward light. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. At 32.3%, #C5C1C2 functions less as a colour accent and more as a complete atmospheric environment. #987912 functions as the palette's exclamation mark: highest chroma, lowest percentage (2.5%). The palette spans 48 value units: a measured range that delivers coherence over drama. This is palette 1 of Cagnaccio di San Pietro's sequence - a single chapter in a chromatic story told across many works.