Light floods William Morris; 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. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. #5C4325 functions as the palette's exclamation mark: highest chroma, lowest percentage (4.2%). A value spread of 63 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 1 sits within the larger chromatic argument that William Morris's complete body of work advances.