Gustave Courbet is high-key - luminous, open, and weighted toward light. Gustave Courbet tilts toward cool - blues and silver-greys carry the structural weight. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. 30.2% of the palette belongs to #B3B8BA, a concentration that makes it the unmistakable visual centre. The most saturated colour, #52412F, is reserved to 3.7% of the surface, where it acts as a focal punctuation. 66 units of value range underpin the palette's structural clarity: the eye always knows where light falls. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 4 sits within the larger chromatic argument that Gustave Courbet's complete body of work advances.