Nikolai Suetin sits in the centre of the value range, lending the palette a sense of even, sustained light. Nikolai Suetin tilts toward cool - blues and silver-greys carry the structural weight. Mid-range chroma keeps the palette grounded - colourful but not strident. The saturated accent, #9BAE17, registers at 3.8% - sparse enough to feel like a deliberate surprise. 56 units of value range underpin the palette's structural clarity: the eye always knows where light falls. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. Palette 4 sits within the larger chromatic argument that Nikolai Suetin's complete body of work advances.