Jacques d'Arthois keeps values measured and balanced, a hallmark of tonal restraint. Jacques d'Arthois tilts toward cool - blues and silver-greys carry the structural weight. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. At 4.5%, #E8E3CA carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. The full value range is 67 units: broad enough to build convincing three-dimensional form. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is palette 1 of Jacques d'Arthois's sequence - a single chapter in a chromatic story told across many works.