Jacques Antoine Vallin sits in the centre of the value range, lending the palette a sense of even, sustained light. Temperature is cool-dominant, with blue and green families claiming the largest areas. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. #786647 delivers the chromatic peak at only 6.7% - a small shot of colour with outsized visual impact. The value range of 53 units sits in the comfortable middle: enough depth, enough light, neither extreme. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Jacques Antoine Vallin's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.