Values in Johann Joseph Jansen rest in the mid-range - neither dramatically lit nor steeped in shadow. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. At 6.5%, #734721 carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. The full value range is 63 units: broad enough to build convincing three-dimensional form. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. In the context of Johann Joseph Jansen's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.