Is this okay to wear at a wedding?

balonchange

I have only been to one wedding in my life, and this will be my second. Last time, my family criticized me for wearing such a dark color to a wedding (it was navy blue). So this time, I thought that I would ask for some advice.
I was going to wear a purple cocktail dress, but I had a short notice that the wedding colors are silver, white, and pink. I'm kinda helping out so I thought that I would match the wedding color but I only have one dress that matches the color.
There wasn't a notice that the wedding was formal but it is during the early evening, so I might be able to pull this off but I also didn't want to be over-dressed. Do you think that it's okay to wear this dress? or should I just go with a purple cocktail(a bit less formal)? 

Amt2109

I don't believe that you - as a guest - should have to match the wedding colours. Some brides request that guests do, and they are wrong to do so. It's unfair for them to dictate what adults wear.

If you would like to wear your purple cocktail dress, then I'm sure that would be fine. As for the dark colour to weddings thing, it's kind of an outdated notion. Many people are putting their bridesmaids in black these days. Wear what makes you happy and comfortable.