Proto Renaissance distributes its values across the middle register, creating harmony without high contrast. Yellow, ochre, sienna: warm hues deployed as the palette's primary energy. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #723A2D delivers the chromatic peak at only 6.1% - a small shot of colour with outsized visual impact. A value spread of 56 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light.