Clément-Auguste Andrieux is high-key - luminous, open, and weighted toward light. Temperature is cool-dominant, with blue and green families claiming the largest areas. Saturation is measured and controlled, giving the palette presence without visual aggression. The most saturated colour, #67502C, is reserved to 9.4% 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 palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of Clément-Auguste Andrieux's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.