The color blue is a cool, natural color that has calming effects. Pastel blues suggest springtime, especially when paired with pastel pinks and pale yellows. Darker blues have a cooler tone and are usually reserved for the winter months, especially when paired with grays or silvers. To create a conservative but sophisticated look, subtly combine dark and light shades of blue. Prom Dress Shop has blue 2015 prom dresses in stock! So start shopping for your Blue Prom Dress Today!