Values in Gustave Moreau tilt decisively toward white, giving the palette its luminous character. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. At 4.2%, #633424 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. At 63 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 3 of Gustave Moreau's sequence - a single chapter in a chromatic story told across many works.