hair up or down?

so i got my prom dress like a few weeks ago it’s like a brighter blue than in the picture (kinda), i don’t have a picture of the back but it doesn’t have any like fancy detail. should i do an updo or wear my hair down? every time i have got my hair curled or like half up half down it hasn’t turned out that’s why i’m hesitant and i need opinions!!

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