The value structure of Émile Auguste Hublin is mid-key: quiet, controlled, and cohesive. Émile Auguste Hublin builds on cool foundations: the palette favours the blue-cyan-green arc. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. Only 8.6% is devoted to #B89C7F, yet that small allocation delivers the palette's entire chromatic tension. From deepest dark to palest light, the palette traverses 61 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 4 sits within the larger chromatic argument that Émile Auguste Hublin's complete body of work advances.