Mid-key values give Jacob van der Ulft its characteristic quietness - nothing blazes, nothing disappears. 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. The most saturated colour, #8E7449, is reserved to 8.7% of the surface, where it acts as a focal punctuation. From deepest dark to palest light, the palette traverses 56 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. In the context of Jacob van der Ulft's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.