Light floods Charles Rennie Mackintosh; the palette keeps values pale and airy across its range. Cool tones set the register here - the blues and greens easily outweigh any warm accents. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. #B6A88A at 38.2% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. The saturated accent, #C3A778, registers at 6.2% - sparse enough to feel like a deliberate surprise. At 42 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. In the context of Charles Rennie Mackintosh's full range of palettes, group 5 represents one movement in an ongoing chromatic dialogue.