Light floods Gustav Klimt; the palette keeps values pale and airy across its range. Gustav Klimt builds on cool foundations: the palette favours the blue-cyan-green arc. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The saturated accent, #CCAB54, registers at 6.0% - sparse enough to feel like a deliberate surprise. The palette spans 52 value units: a measured range that delivers coherence over drama. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is palette 3 of Gustav Klimt's sequence - a single chapter in a chromatic story told across many works.