When you RSVP you are letting the bridal party know that you will attend. For your attendance, the bridal party is paying for you to attend the ceremony, and reception failure to do so will result in a $75.00 charge. Must notify wedding party 14 days before wedding that you will not be attending.

You are allowed to where any formal attire. For those who are confused this is similar to homecoming or prom or formal work event attire.

The only colors that are off-limits will be black and red. if you are not a part of the wedding party you are not permitted to wear these solid colors .
example
no all black suits or dresses
No all red suits or dresses
However you are allowed to accent you attire with those colors