A winter formal dress is typically an elegant and sophisticated garment designed for special occasions during the colder months. These dresses often feature long sleeves, luxurious fabrics such as velvet or satin, and intricate embellishments like sequins or lace to provide warmth and a touch of glamour. The color palette for winter formal dresses tends to include deep, rich hues like burgundy, navy, or emerald, reflecting the season's festive and cozy atmosphere.