Sister of the groom outfit help please

Hi all, OT'er looking for some help here

Can I have some advice on hair/head accessories for my outfit for my brother's wedding please? I have got this top

http://www.dorothyperkins.com/webapp/wcs/stores/servlet/ProductDisplay?beginIndex=0&viewAllFlag=&catalogId=20552&storeId=12552&categoryId=116944&parent_category_rn=88619&productId=1320496&langId=-1

and wearing it with some stylish black leggings. I still need to get shoes but I did get my bag which is a clutch bag in the same colour as my top with silver sequins. I'm thinking chunky bracelet and nice earrings in silver to tie in the bag but I've no idea what to get for my head 😄 I have a short choppy bob which is chin length so could have something on a headband or a something on a clip. Also not sure to go with blue or will that look too much so better with silver???

Any help appreciated, thanks