Help Me Pick a Fabric Dye Color!

Now that our one year wedding anniversary has come and gone, I've started thinking again about what to do with some of our leftover wedding items. 

I still haven't gotten around to selling or giving away a few extra decor items and still haven't cleaned any of my wedding event dresses yet. Partly because of laziness, partly because I hate getting rid of stuff, and partly because I ran out of time to take care of these things before our move and they're still packed away.

But this past weekend I did dig out my rehearsal dinner dress from BCBG, because I think I want to try to dye it so I can re-wear it, instead of selling it to someone. If it was a color other than white, I would have a lot more use for it, and I really like the silk floral applique detailing, so I figure it's worth a shot.

Here's a look at my rehearsal dress, so you get an idea of what I'm talking about (the purple sash is not attached):

{From our wedding ceremony rehearsal}

{From our rehearsal dinner}

And a close up view of the fabric:

{From this post about making my Weddingbee Moniker-Inspired Rehearsal Bouquet}

The problem is, the top floral layer of the dress is 100% silk and the under layer is 100% polyester. Googling high and low, time and time again I read that there is no fabric dye that will work on both silk and polyester.

I briefly considered taking apart the seams to separate the layers of the dress, dying them separately , then sewing them back together, but that seems like too much work.

So I kept Googling, reading fabric dying forums, until I found a mention of what is called iDye (for natural fabrics like silk) and iDye Poly (for synthetic fabrics like polyester), which can be mixed together to dye poly-blend fabrics). So I'm guessing (and hoping!) it will work on my two layer dress too.

But now is where I need your help, because I can't decide which color to dye my dress!

I always love bright colors, but then again, they aren't quite as versatile. But I do want something that will go with the floral-ness of the dress. Here's a look at my color choices in red:

{Source}

And with a little Photoshop fun, here's what the dress could look like once it's dyed:

The yellow is fun, but could be a little too neon, although I really liked Cat Deeley's yellow dress last night on SYTYCD--the lace top might look a bit like my dress would if dyed yellow.

The pink is a bit bright, the purple is a little too "Barney," and the red could be ok, but I just got this other red dress (in fact, I have several red dresses already).

Looking at darker options:

The blue is not too bad, but I'm not sure it totally goes with the flowers, and the green is nice, but again, I couldn't wear it to as many things, just like with the yellow, because it's such a stand out color. The gold is very interesting....it has a lot of potential to be nice and classy but subtle, as long as it doesn't end up being too orange or yellow or dingy looking. I really like the silver grey, however I do already have a silver scoop neck dress with a belt, so I'm not sure I need another one. And of course I already own several LDBs as well, plus I think the black might be a little much for the floral theme of the dress.

This is the sliver dress I already own, what do you think, too close to what my rehearsal dress could become once it's dyed?

{From this hair curling tutorial blog post}

Although my silver dress is a bit shiny, as shown better in this photo with a flash:

{From this lovely lady's wedding recaps}

Basically, I don't think I like the pink or purple, but I'm still debating the other colors. So please weigh in with your opinion, which color would you pick for this dress dying experiment?