Mid-key values give Richard Jack its characteristic quietness - nothing blazes, nothing disappears. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. A single dominant - #111213 at 30.1% - sets the character of the whole composition. The highest-chroma note - #A8916A - appears at just 9.8%, deployed as a precision accent against the quieter ground. The full value range is 66 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. This is palette 3 of Richard Jack's sequence - a single chapter in a chromatic story told across many works.