Henri Manguin distributes its values across the middle register, creating harmony without high contrast. Henri Manguin builds on cool foundations: the palette favours the blue-cyan-green arc. Colours are neither washed out nor blazing; they occupy the productive middle ground of the chroma scale. The most saturated colour, #B89533, covers 6.2% of the surface: too much to call an accent, too strong to ignore. Value range is moderate at 52 units - enough contrast for legibility, not so much as to fragment the tonal unity. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of Henri Manguin's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.