Black Rehearsal Dress

There have never been any rules about rehearsal clothing colors, no matter what the year.

I think it is totally fine. There aren't really rules on what color you should wear for your rehearsal. As for shoes, it depends on if you want a neutral color like silver or if you want something that pops like red.

I wore a floral dress that had blues, greens, and purples on it. There's absolutely no need to wear white to any of your wedding events (including the wedding if you don't want to).

I don't see a problem with it, I LOVE black also lol that's majority of my closet.

Wear whatever you want! It is your rehearsal and you should feel your best.

Go for it!! Rock that black dress for your rehearsal dinner!

Black would work fine, I'd just consider what your partner is wearing. In photos black has the tendency to kind of disappear, so if your partner doesn't wear a similarly dark color and you happen to be petite and tiny anyway, it might not be the best choice for photos specifically. A professional photographer can give you advice for your engagement shoot (and can make black work beautifully) and for other events if the photos aren't super important it shouldn't matter. Just if you are going to have a lot of friends/family taking a lot of amateur photos, the black and details of your dress may not show up as well.

Unlike everyone else here, I don't think brides wearing white to other wedding related events is anything new, but its certainly not required. I think the reason brides opt for white for showers, bachelorettes, brunches, and engagement parties is because its an excuse to wear white. Since white is inappropriate to wear white to someone else's wedding and the average person probably doesn't actually get dressed up all that often on a regular basis, wearing white to your pre-wedding events is an excuse to wear cute white outfits you'd never have an occasion to wear otherwise. I pretty much get dressed up for weddings and the very occasional date night or work event, because we don't really have galas or balls or fancy things we can go to, so was excited to get at least one extra white dress to wear for a wedding function.

Definitely nothing wrong with a black dress - the one you described sounds so pretty! As for shoes, for the rehearsal I would wear the shoes you're going to wear on your wedding day so you get a feel for how the day will go (especially if any elements of the wedding are outside - you want to know how they are before you walk down the aisle!). If you already have your wedding day shoes, you could also wear them for the engagement photos; if not, a shoe with a pop of color would look nice for the engagement photos.