Navy and black, a strong combination, opened the show of Carolina Herrera yesterday. It was a beautiful display of regal elegance. The first looks came in shades of deep indigo with black accents. Fabrics, such as knits with feather and fur details, blurred the line between traditional day- and eveningwear, and had a modern touch. The second part of show was lighter and less subtle, with heavy handed abstract prints by artist Joe Duke.