Help for the terminally style-challenged!!

[Musicalmistress]

I have a family wedding in July & I’m looking for some help with accessorising this dress.
My main issue is what colour hat (fascinator type)/ bag /shoes?
My first thought was navy but I just feel that although it’s a classic colour combo it’s maybe just a bit boring. (Should add here I’ll be attending with a shedload of young, pretty, fashionistas & I am none of those things!) Then I thought about going brighter & maybe yellow would kind of make it pop but I’m 🤔.
Please help MN fashionistas!!

Not yellow, please. Fuchia, lavender, shocking or pale pink, olive possibly, even white/bone/ivory,silver. If you choose a hat, don't match it to the bag and shoes. Thinking about it, lavender headwear and shoes, and a silver-y bag? but it all depends on your colouring. Two items should match fairly closely (dress and shoes, to give coherence) but not all the same.

If I may, please don't opt for the tiniest bag you can find. The picture of the dress suggests you are shopping for a size 16 or above, so the proportions will matter and a teeny bag (quite apart from being as much use as a chocolate fireguard) will look too small.