Mid-key values give Friedrich Frank its characteristic quietness - nothing blazes, nothing disappears. Friedrich Frank 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. At 4.0%, #6AA6BB carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. Value range is moderate at 48 units - enough contrast for legibility, not so much as to fragment the tonal unity. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Taken together, these qualities constitute Friedrich Frank's chromatic voice - distinctive enough to be read across an entire body of work.