The high-key values of Johan Mari Henri ten Kate give it an effulgent, almost bleached quality. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The saturated accent, #2F2A1F, registers at 4.6% - sparse enough to feel like a deliberate surprise. The full value range is 62 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. This is palette 1 of Johan Mari Henri ten Kate's sequence - a single chapter in a chromatic story told across many works.