Mid-key values give Bertalan Por its characteristic quietness - nothing blazes, nothing disappears. Bertalan Por 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 5.7%, #354572 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. The full value range is 66 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 Bertalan Por's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.