Alexandre-Louis Leloir is strongly light-biased - shadow is suggested rather than declared. Alexandre-Louis Leloir tilts toward cool - blues and silver-greys carry the structural weight. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The dominant colour, #EEDBBF, takes 26.7% of the total area, establishing the overall mood before any other hue is introduced. The most saturated colour, #6F3C31, is reserved to 2.2% of the surface, where it acts as a focal punctuation. The full value range is 60 units: broad enough to build convincing three-dimensional form. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Alexandre-Louis Leloir's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.