We are using silver with the cornflower because it looks good, but I found ribbon at craft warehouse called light blue that matched.
Where Can You Purchase "Cornflower Blue" Colored Napkins And Ribbon?
Try rexcraft.com. They have a color called medium blue. In some lights it matches the swatch from david's bridal perfect and in others it is a little off but it is the best match we have found so far and we have looked everywhere. Order you a sample and you can see for yourself and it is free.