Mid-key values give Sonia Delaunay its characteristic quietness - nothing blazes, nothing disappears. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is held at a comfortable level - distinct colours, but no single hue is allowed to overwhelm. The saturated accent, #C3524A, registers at 3.8% - sparse enough to feel like a deliberate surprise. The palette spans 46 value units: a measured range that delivers coherence over drama. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of Sonia Delaunay's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.