Blue evening bags are so versatile as they come in a range of colours such as royal blue, powder blue, navy blue and teal. Navy blue evening bags are a timeless shade which can provide a more subtle, sophisticated alternative to black and complements many colours, whereas powder blue evening bags team perfectly with spring and summer outfits. Royal blue (or cobalt) is a popular colour in winter and spring and has featured heavily in recent fashion shows (New York and Paris).