Values in Gustave Moreau rest in the mid-range - neither dramatically lit nor steeped in shadow. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The highest-chroma note - #4A3224 - appears at just 8.1%, deployed as a precision accent against the quieter ground. The full value range is 72 units: broad enough to build convincing three-dimensional form. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. In the context of Gustave Moreau's full range of palettes, group 5 represents one movement in an ongoing chromatic dialogue.