Values in Jacob Samuel Beck rest in the mid-range - neither dramatically lit nor steeped in shadow. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The most saturated colour, #A97A47, is reserved to 2.7% of the surface, where it acts as a focal punctuation. The full value range is 55 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 Jacob Samuel Beck's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.