Sarah Purser dwells firmly in the shadows, with no more than a whisper of light. Sarah Purser orchestrates warmth above all else - reds, ambers, and siennas take the lead. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The most saturated colour, #CE733A, is reserved to 2.6% of the surface, where it acts as a focal punctuation. At 51 units across the value scale, the palette keeps contrast readable without letting it dominate. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. In the context of Sarah Purser's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.