Elizabeth Thompson is high in key: pale, luminous, and filled with optical air. Temperature is cool-dominant, with blue and green families claiming the largest areas. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. Only 2.4% is devoted to #764A3A, yet that small allocation delivers the palette's entire chromatic tension. Spanning 50 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 4 of Elizabeth Thompson's sequence - a single chapter in a chromatic story told across many works.