Ivan Bilibin is high in key: pale, luminous, and filled with optical air. Ivan Bilibin builds on cool foundations: the palette favours the blue-cyan-green arc. Mid-saturation across the board: the palette has colour character without chromatic excess. Only 7.9% is devoted to #8B6E37, yet that small allocation delivers the palette's entire chromatic tension. At 54 units across the value scale, the palette keeps contrast readable without letting it dominate. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Ivan Bilibin's palette 11 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.