Odilon Redon is strongly light-biased - shadow is suggested rather than declared. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is moderate: colours carry enough saturation to be read as colour, but the palette stops well short of garish intensity. The highest-chroma note - #476DB9 - appears at just 4.5%, deployed as a precision accent against the quieter ground. At 60 units of value range, the palette has the tonal breadth to sustain complex spatial readings. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Odilon Redon's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.