Both are cool-toned neutrals, but Platinum reads brighter and more metallic-grey. Dove is softer and more muted — it recedes into the room and whispers. Platinum has a polished, precise quality — it reads clean and contemporary rather than quiet and understated. In a very structured, modern interior with sharp lines and minimal clutter, Platinum tends to look more intentional. In a softer, more relaxed space, Dove fits better.