Limbourg brothers occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. 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. #3A4989 functions as the palette's exclamation mark: highest chroma, lowest percentage (6.0%). 48 units of value spread create a palette that is varied but unified - contrast in the service of harmony. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Palette 9 sits within the larger chromatic argument that Limbourg brothers's complete body of work advances.