Mid-key values give Hans Brunner its characteristic quietness - nothing blazes, nothing disappears. Hans Brunner builds on cool foundations: the palette favours the blue-cyan-green arc. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The saturated accent, #B48F59, registers at 4.1% - sparse enough to feel like a deliberate surprise. The full value range is 66 units: broad enough to build convincing three-dimensional form. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Hans Brunner's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.