Values in Christina Robertson rest in the mid-range - neither dramatically lit nor steeped in shadow. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. At 35.0%, #0A1820 functions less as a colour accent and more as a complete atmospheric environment. The most saturated colour, #E4D5A1, is reserved to 2.6% of the surface, where it acts as a focal punctuation. The full value range is 67 units: broad enough to build convincing three-dimensional form. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Christina Robertson's full range of palettes, group 6 represents one movement in an ongoing chromatic dialogue.