Theodore Rousseau is high in key: pale, luminous, and filled with optical air. 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. At 6.1%, #503A1C carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. At 60 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Theodore Rousseau's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.