The value structure of Joseph Anton Koch is mid-key: quiet, controlled, and cohesive. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. #AD534D delivers the chromatic peak at only 6.8% - a small shot of colour with outsized visual impact. A value spread of 62 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. Palette 3 sits within the larger chromatic argument that Joseph Anton Koch's complete body of work advances.