Michelle Obama [1] is no stranger to cool, casual outfits [2], but when the first lady means business, she shows up in an outfit that helps her command the room. She did just that while delivering her powerful DNC speech [3], stepping out on stage in a blue dress by Christian Siriano.

There were so many reasons this particular choice was a smart one. For starters, the specific hue perfectly blended with the background, and while bright and stunning, it didn't distract from Michelle's words. It also included a modest neckline yet was still very stylish thanks to the fit-and-flare design.

Scroll through to see Michelle's DNC look in full, then shop a similar dress style for yourself.

Michelle's Blue Christian Siriano Dress Blended Well With the Background

It Didn't Distract From Her Powerful Words

The Fit-and-Flare Design Was Modest Yet Stylish

And She Paired Her Look With Silver Drop Earrings

It Was the Perfect Choice!