Ethel Léontine Gabain is high-key - luminous, open, and weighted toward light. Ethel Léontine Gabain builds on cool foundations: the palette favours the blue-cyan-green arc. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #352A23 delivers the chromatic peak at only 6.0% - a small shot of colour with outsized visual impact. At 62 units of value range, the palette has the tonal breadth to sustain complex spatial readings. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 4 sits within the larger chromatic argument that Ethel Léontine Gabain's complete body of work advances.