Values in Lilly Martin Spencer rest in the mid-range - neither dramatically lit nor steeped in shadow. Lilly Martin Spencer builds on cool foundations: the palette favours the blue-cyan-green arc. All colours lean toward grey, building depth through value rather than colour punch. Only 8.4% is devoted to #878059, yet that small allocation delivers the palette's entire chromatic tension. 73 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. This is palette 3 of Lilly Martin Spencer's sequence - a single chapter in a chromatic story told across many works.