The value structure of Jean-Joseph-Xavier Bidauld is mid-key: quiet, controlled, and cohesive. Temperature is cool-dominant, with blue and green families claiming the largest areas. All colours lean toward grey, building depth through value rather than colour punch. #C0A776 delivers the chromatic peak at only 7.2% - a small shot of colour with outsized visual impact. From deepest dark to palest light, the palette traverses 58 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. The palette is a signature: Jean-Joseph-Xavier Bidauld's particular sense of value, warmth, and colour weight made legible.