The value structure of Paul Quinsac is mid-key: quiet, controlled, and cohesive. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. Saturation is measured and controlled, giving the palette presence without visual aggression. The most saturated colour, #9E381C, is reserved to 6.0% of the surface, where it acts as a focal punctuation. A value spread of 76 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. This is palette 4 of Paul Quinsac's sequence - a single chapter in a chromatic story told across many works.