Values in Jacques d'Arthois rest in the mid-range - neither dramatically lit nor steeped in shadow. Jacques d'Arthois keeps warm and cool in parity, a balance that lends the work a perceptual shimmer. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. At 36.0%, #FFFFFF functions less as a colour accent and more as a complete atmospheric environment. The saturated accent, #C49F6E, registers at 2.1% - sparse enough to feel like a deliberate surprise. The full value range is 82 units: broad enough to build convincing three-dimensional form. In the context of Jacques d'Arthois's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.