The value structure of Byzantine is mid-key: quiet, controlled, and cohesive. The palette tilts toward cool - blues and silver-greys carry the structural weight. Chroma is held at a comfortable level - distinct colours, but no single hue is allowed to overwhelm. The most saturated colour, #B35933, is reserved to 1.5% of the surface, where it acts as a focal punctuation. 55 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.