Johann Ludwig Bleuler is high in key: pale, luminous, and filled with optical air. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #94A49B at 25.9% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. The saturated accent, #4A5533, registers at 4.9% - sparse enough to feel like a deliberate surprise. The value range of 43 units sits in the comfortable middle: enough depth, enough light, neither extreme. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Johann Ludwig Bleuler's palette 4 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.