Heinrich Lefler is high in key: pale, luminous, and filled with optical air. Heinrich Lefler 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. #AF5C32 delivers the chromatic peak at only 2.7% - a small shot of colour with outsized visual impact. A value spread of 67 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. These proportions encode Heinrich Lefler's instinctive sense of how much of each quality the eye can hold.