Is this OK for DS's wedding?

[SirChenjins]

It's a city registry office wedding for close family and friends in summer followed by a party for the wide extended family and friends in the evening. Emphasis is on casual and relaxed. I'm 57, five foot 1, size 12 on top, 14 on the bottom, blond hair and hazel eyes. I really like this, with possibly navy heels (not too high) and maybe a fuchsia bag - not hat/fascinator, might do a nice hair clip and low messy bun. What do you think? Also open to suggestions 😊 (but must take account of my lack of inches and nothing above the knee or light blue colour) https://www.hobbs.com/product/petite-tess-shirt-dress/0126-5997-1185L04-MIDNIGHT-NAVY.html

It's absolutely gorgeous. I would probably go for a pale shoe and bag (shell or lightest beige?).
Nothing wrong with the fuschia but that is maybe more dressy than informal

beautiful - hot pink shoes and bag would be lovely

I think the dress is absolutely stunning. I agree pink is maybe a bit passé and came on to say orange would be stunning with it, but see a pp has already suggested it.

I love that.