Values in Roger Bissière 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. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. Roger Bissière gives 32.3% of the composition to a single #0B0E0F - a decisive chromatic anchor. The most saturated colour, #C98748, is reserved to 5.0% of the surface, where it acts as a focal punctuation. From deepest dark to palest light, the palette traverses 64 units of the value scale - a span that creates natural depth. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. The palette is recognisably Roger Bissière's own: particular in its temperature, chroma, and the economy of its brightest note.