Low-key values are the structural spine of Francisco de Zurbaran, giving it gravity and atmosphere. Francisco de Zurbaran balances warm and cool with remarkable evenness, giving the composition its characteristic vibrancy. All colours lean toward grey, building depth through value rather than colour punch. At 27.6%, #0E0E11 functions less as a colour accent and more as a complete atmospheric environment. #BF9659 delivers the chromatic peak at only 2.6% - a small shot of colour with outsized visual impact. At 65 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The combination of low values, muted chroma, and compressed range is the signature of the Tonalist mode - painting as atmosphere. In the context of Francisco de Zurbaran's full range of palettes, group 14 represents one movement in an ongoing chromatic dialogue.