The high-key values of Evelyn De Morgan give it an effulgent, almost bleached quality. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. Only 2.3% is devoted to #764F32, yet that small allocation delivers the palette's entire chromatic tension. A value spread of 68 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Evelyn De Morgan's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.