Mid-key values give Lilly Martin Spencer its characteristic quietness - nothing blazes, nothing disappears. Lilly Martin Spencer tilts toward cool - blues and silver-greys carry the structural weight. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. A single dominant - #181E1A at 42.3% - sets the character of the whole composition. The saturated accent, #E4B368, registers at 4.5% - sparse enough to feel like a deliberate surprise. From deepest dark to palest light, the palette traverses 74 units of the value scale - a span that creates natural depth. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. Palette 1 sits within the larger chromatic argument that Lilly Martin Spencer's complete body of work advances.