Alexandre-Jacques Chantron sits in the centre of the value range, lending the palette a sense of even, sustained light. Alexandre-Jacques Chantron builds on cool foundations: the palette favours the blue-cyan-green arc. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The highest-chroma note - #C1B38C - appears at just 9.2%, deployed as a precision accent against the quieter ground. The full value range is 65 units: broad enough to build convincing three-dimensional form. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Alexandre-Jacques Chantron's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.