blue dresses with long sleeves A Line Sequin Royal Prom Sleeve Winter Formal Dress Royal Blue / US2 The Long Sleeve Fluffy Navy Blue Dress will be a staple piece for your luxury events Sheath/Column Off The Shoulder Royal

So lets break down how the fashion pros are styling their flats and jeans

Add a blazer or oversized coat to complete the look

Some traditionalists even advise against wearing any watch when the invitation specifies a black-tie dress code

This is the kind of simple shift dress you can wear to run errands throughout the day and switch out your sneakers for heels when night falls, and its time to socialize

Johansson, seen heading to The Late Show With Stephen Colbert last night, slipped into a curve-hugging LBD by Balmain

For evening functions, a black saree with a hint of shimmer can elevate your look, while for more formal occasions, a simple, matte-black silk saree with minimal embroidery speaks volumes