Whether it’s sky, powder, cobalt, or navy, a sea of blues is ready to wash over your wardrobe this fall, as modeled by European brands from Prada to Louis Vuitton to Saint Laurent on the runways. Brighter tones make for punchy statements, while deeper shades align with the timeless elegance of the quiet luxury aesthetic. From bold, structured pieces to flowing, ethereal designs, these shades of blue offer a versatile range of options.