Cobalt Blue Satin Mermaid Boat Neck Draped Back Keyhole Detail Floor Length Formal Evening Prom DressBL's elegant cobalt blue prom dress is crafted from smooth, lustrous satin fabric. The form fitting mermaid silhouette features a sophisticated boat neckline with a subtle keyhole detail at the front, complemented by a dramatic draped back panel that adds modern flair. The floor length skirt flares gently at the hem, creating a timeless red carpet look perfect for prom nights, formal galas, or black tie events.