For this reasoning it makes being a guest to a wedding slightly harder to choose what to wear. For example what if the bride turns up in a big red dress, and you have chosen a nice red dress?! You dont want to take any of the limelight of the bride do you? So choosing summer dresses for weddings becomes more and more difficult. My tip to you is to go simple with subtle colours. Summery colours nothing to extreme and you wont go far wrong!