Values in Rosa Bonheur rest in the mid-range - neither dramatically lit nor steeped in shadow. Temperature is cool-dominant, with blue and green families claiming the largest areas. All colours lean toward grey, building depth through value rather than colour punch. The saturated accent, #A46F2A, registers at 4.1% - sparse enough to feel like a deliberate surprise. The palette spans 54 value units: a measured range that delivers coherence over drama. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. These proportions encode Rosa Bonheur's instinctive sense of how much of each quality the eye can hold.