The value structure of Anna Katarina Boberg is mid-key: quiet, controlled, and cohesive. Cool tones set the register here - the blues and greens easily outweigh any warm accents. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. #A38E81 functions as the palette's exclamation mark: highest chroma, lowest percentage (9.5%). At 43 units across the value scale, the palette keeps contrast readable without letting it dominate. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Palette 4 sits within the larger chromatic argument that Anna Katarina Boberg's complete body of work advances.