Jan Styka sits in the centre of the value range, lending the palette a sense of even, sustained light. Jan Styka builds on cool foundations: the palette favours the blue-cyan-green arc. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The highest-chroma note - #7C613E - appears at just 7.0%, deployed as a precision accent against the quieter ground. 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 Jan Styka's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.