Mustard yellow has officially claimed the season, offering a sophisticated alternative to its softer counterparts, butter and gold. Throughout the Spring/Summer 2026 collections, this unlikely shade served as a thread across the most talked-about runways. Bella Hadid strutted Saint Laurent in a shoulder‑skimming dress, styled with black‑tinted hosiery and pointy pumps that nodded to corporate cool. All eyes were on Bottega Veneta when, in Milan, Louise Trotter sculpted the shade into coats of recycled fibreglass, giving mustard a gravity all its own.