Mid-key values give Haralampi Tachev its characteristic quietness - nothing blazes, nothing disappears. Haralampi Tachev builds on cool foundations: the palette favours the blue-cyan-green arc. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. The saturated accent, #2C3B66, registers at 2.5% - sparse enough to feel like a deliberate surprise. The full value range is 61 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. Taken together, these qualities constitute Haralampi Tachev's chromatic voice - distinctive enough to be read across an entire body of work.