Values in Charles D'Oyly rest in the mid-range - neither dramatically lit nor steeped in shadow. Charles D'Oyly tilts toward cool - blues and silver-greys carry the structural weight. Muted throughout, the palette achieves its effects through value and temperature rather than chromatic force. #D7D2C2 delivers the chromatic peak at only 5.0% - a small shot of colour with outsized visual impact. 58 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. These proportions encode Charles D'Oyly's instinctive sense of how much of each quality the eye can hold.