Light floods John O'Connor; the palette keeps values pale and airy across its range. Temperature is cool-dominant, with blue and green families claiming the largest areas. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. The saturated accent, #8A653F, registers at 8.4% - sparse enough to feel like a deliberate surprise. 66 units of value range underpin the palette's structural clarity: the eye always knows where light falls. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. Palette 3 sits within the larger chromatic argument that John O'Connor's complete body of work advances.