Mid-key values give Cubism its characteristic quietness - nothing blazes, nothing disappears. Built on cool foundations: the palette favours the blue-cyan-green arc. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #494A73 delivers the chromatic peak at only 9.8% - a small shot of colour with outsized visual impact. A value spread of 58 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source.