The high-key values of Carl Abraham Rothstén give it an effulgent, almost bleached quality. A distinctly cool atmosphere runs through this palette: sky, water, and mist given colour form. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The highest-chroma note - #26190C - appears at just 5.9%, deployed as a precision accent against the quieter ground. A value spread of 59 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Carl Abraham Rothstén's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.