Roger Bissière occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Roger Bissière tilts toward cool - blues and silver-greys carry the structural weight. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. Roger Bissière gives 32.3% of the composition to a single #0B0E0F - a decisive chromatic anchor. The highest-chroma note - #C98748 - appears at just 5.0%, deployed as a precision accent against the quieter ground. A value spread of 64 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. This is palette 1 of Roger Bissière's sequence - a single chapter in a chromatic story told across many works.