Values in Johann Erdmann Hummel rest in the mid-range - neither dramatically lit nor steeped in shadow. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. Only 6.0% is devoted to #BB6945, yet that small allocation delivers the palette's entire chromatic tension. A value spread of 64 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is the light Johann Erdmann Hummel preferred, made measurable.