My sister wants royal blue bridesmaid dresses with a black and white wedding reception theme. Somehow I don't think that will work but what do you think?I think it sounds rather elegant. She could make it work seamlessly by incorporating royal blue accents into her reception decorations :)that is PERFECTLY ALRIGHT! its all about her and blue, white and black all go together.....they match...if that's what she wants then its fine...royal blue and black do go together with white thats a 100% great reception theme.......Summer boasts of more weddings than any other time of year and if you are having summer beach wedding it will surely leave you with beautiful memories of a tropical, relaxed event for many years to come. If you are planning to have summer beach wedding, you will have to do proper planning before buying a wedding dress. Choosing a summer Beach Wedding Dresses are a bit different as compared to shopping for a dress for a traditional wedding. More Cheap Beach Wedding Dresses, Casual Beach Wedding Dresses from GoodGoodsChina.com. It is your sister's wedding and I think you should let her do the choosing of the colors. IMO, a royal blue and white reception theme would look nice with the dresses, but your sister is the bride and do not make comments about her ideas. When you are planning your wedding, you will have your chance then to do the choosing.They are my wedding colours. I am also encorporating the royal blue into the decor. I work in a function center and my favourite weddings have had these colours hence why I chose them. I find they work beautifully together.