Values in Thomas Birch rest in the mid-range - neither dramatically lit nor steeped in shadow. Blues and teal-greys govern the palette, lending it an aquatic or atmospheric quality. All colours lean toward grey, building depth through value rather than colour punch. The most saturated colour, #4D412D, is reserved to 9.2% of the surface, where it acts as a focal punctuation. At 46 units across the value scale, the palette keeps contrast readable without letting it dominate. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. In the context of Thomas Birch's full range of palettes, group 3 represents one movement in an ongoing chromatic dialogue.