Values in Gesina ter Borch tilt decisively toward white, giving the palette its luminous character. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. A single dominant - #FFFFFE at 41.9% - sets the character of the whole composition. The highest-chroma note - #C19C5A - appears at just 3.9%, deployed as a precision accent against the quieter ground. At 72 units of value range, the palette has the tonal breadth to sustain complex spatial readings. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky. In the context of Gesina ter Borch's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.