Tonalism is strongly light-biased - shadow is suggested rather than declared. Built on cool foundations: the palette favours the blue-cyan-green arc. Mid-saturation across the board: the palette has colour character without chromatic excess. The saturated accent, #C2CF37, registers at 3.9% - sparse enough to feel like a deliberate surprise. At 27 units across the value scale, the palette keeps contrast readable without letting it dominate. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky.