Gregorio Undurraga distributes its values across the middle register, creating harmony without high contrast. Gregorio Undurraga keeps warm and cool in parity, a balance that lends the work a perceptual shimmer. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The highest-chroma note - #886557 - appears at just 9.6%, deployed as a precision accent against the quieter ground. 34 units of value spread create a palette that is varied but unified - contrast in the service of harmony. In the context of Gregorio Undurraga's full range of palettes, group 6 represents one movement in an ongoing chromatic dialogue.