Mid-key values give Adolphe Roehn its characteristic quietness - nothing blazes, nothing disappears. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The most saturated colour, #BB9B5D, is reserved to 3.3% of the surface, where it acts as a focal punctuation. Spanning 54 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Adolphe Roehn arrived at this balance through long practice; the palette carries the weight of that experience.