Blue and black are timeless colors that exude confidence. A navy blue blazer paired with black trousers creates a sharp look suitable for formal events or business meetings. For a more casual vibe, try a light blue 100% cotton shirt with black jeans. This combination is versatile and works well in both day and evening settings. Stunning color combinations like blue and black can also be enhanced with accessories, such as a black leather belt or a watch with a blue face. With the right fit, this combo can make you look polished and put together.