Should you wear a black suit to a conference?

I've seen competing advice about this online. Some sources say a black suit is too formal or associated with funerals, while others say that it is appropriate. I'm new to corporate environments and had already purchased an (expensive!) black suit and was going to wear it until this was brought up by my dad.

The FAQ suggested that this rule wasn't as stringent for women when it comes to interviews, but I was wondering if that applies more broadly. Especially at a conference where I am not presenting, would wearing black suit come across as overly formal?