The value structure of Gustave Moreau is mid-key: quiet, controlled, and cohesive. Yellow, ochre, sienna: warm hues that Gustave Moreau deploys as the palette's primary energy. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #CBBEA1 delivers the chromatic peak at only 10.5% - a small shot of colour with outsized visual impact. The value range spans 67 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. Taken together, these qualities constitute Gustave Moreau's chromatic voice - distinctive enough to be read across an entire body of work.