The high-key values of Gustave Moreau give it an effulgent, almost bleached quality. Cool tones set the register here - the blues and greens easily outweigh any warm accents. All colours lean toward grey, building depth through value rather than colour punch. A single dominant - #F3EFE8 at 25.0% - sets the character of the whole composition. #C26936 delivers the chromatic peak at only 5.7% - a small shot of colour with outsized visual impact. A value spread of 69 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Palette 1 sits within the larger chromatic argument that Gustave Moreau's complete body of work advances.