Darkness anchors Claudio Coello; light is rationed, creating dramatic contrast rather than open air. Claudio Coello builds on cool foundations: the palette favours the blue-cyan-green arc. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. At 44.4%, #0A0805 functions less as a colour accent and more as a complete atmospheric environment. The most saturated colour, #7A4B20, is reserved to 4.7% of the surface, where it acts as a focal punctuation. Value range is moderate at 49 units - enough contrast for legibility, not so much as to fragment the tonal unity. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. In the context of Claudio Coello's full range of palettes, group 6 represents one movement in an ongoing chromatic dialogue.