The value structure of Joseph Anton Koch is mid-key: quiet, controlled, and cohesive. Joseph Anton Koch tilts toward cool - blues and silver-greys carry the structural weight. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The saturated accent, #493923, registers at 12.2% - sparse enough to feel like a deliberate surprise. The full value range is 58 units: broad enough to build convincing three-dimensional form. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 6 sits within the larger chromatic argument that Joseph Anton Koch's complete body of work advances.