Can I wear this to a wedding?

I am going to a wedding in August and I want to wear this dress: a href="http://www.jcpenney.com/jcp/X6.aspx?GrpTyp=PRD&ItemID=1b73563&deptid=71275&dep=JUNIORS&catid=81020&pcat=JUNIORS&cat=Dresses&cattyp=RLE&NOffset=2&CatSel=4294934949%7ccasual+dresses&pcatid=71275&Ne=4294957900+3+585+8+18+904+833+949&pagesize=1&SO=0&N=4294934949&Nao=0&PSO=0&CmCatId=71275|81020" rel="nofollow"http://www.jcpenney.com/jcp/X6.aspx?GrpT…/a I know you are not supposed to wear white to a wedding, but it this okay?