Theodoor van Thulden sits in the centre of the value range, lending the palette a sense of even, sustained light. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. The highest-chroma note - #B55B45 - appears at just 5.2%, deployed as a precision accent against the quieter ground. The value range spans 61 units across the palette, providing the full gamut from deep shadow to near-white and ensuring clear tonal hierarchy. In the context of Theodoor van Thulden's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.