Gaspar van Wittel occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Gaspar van Wittel builds on cool foundations: the palette favours the blue-cyan-green arc. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #B3915C delivers the chromatic peak at only 2.0% - a small shot of colour with outsized visual impact. The palette spans 53 value units: a measured range that delivers coherence over drama. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. This is the light Gaspar van Wittel preferred, made measurable.