Values in Gustave Moreau rest in the mid-range - neither dramatically lit nor steeped in shadow. Gustave Moreau orchestrates warmth above all else - reds, ambers, and siennas take the lead. All colours lean toward grey, building depth through value rather than colour punch. #874D3B delivers the chromatic peak at only 6.4% - a small shot of colour with outsized visual impact. At 66 units of value range, the palette has the tonal breadth to sustain complex spatial readings. In the context of Gustave Moreau's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.