Otto Eckmann keeps values measured and balanced, a hallmark of tonal restraint. Otto Eckmann builds on cool foundations: the palette favours the blue-cyan-green arc. All colours lean toward grey, building depth through value rather than colour punch. The most saturated colour, #DEB278, is reserved to 4.0% of the surface, where it acts as a focal punctuation. The full value range is 56 units: broad enough to build convincing three-dimensional form. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is the light Otto Eckmann preferred, made measurable.