Mid-key values give Robert Delaunay its characteristic quietness - nothing blazes, nothing disappears. Temperature is cool-dominant, with blue and green families claiming the largest areas. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. The highest-chroma note - #0D51F0 - appears at just 1.4%, deployed as a precision accent against the quieter ground. 60 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. The palette is a signature: Robert Delaunay's particular sense of value, warmth, and colour weight made legible.