Values in Jean Barbault rest in the mid-range - neither dramatically lit nor steeped in shadow. Jean Barbault builds on cool foundations: the palette favours the blue-cyan-green arc. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. Jean Barbault gives 25.2% of the composition to a single #292820 - a decisive chromatic anchor. #A84D24 delivers the chromatic peak at only 0.9% - a small shot of colour with outsized visual impact. From deepest dark to palest light, the palette traverses 60 units of the value scale - a span that creates natural depth. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Palette 4 sits within the larger chromatic argument that Jean Barbault's complete body of work advances.