In a recent Instagram post, Martha Stewart wore a dark blue linen shacket with a cinched waist. Celebs like Kelly Clarkson ...

A striped button-up ... striped shirt has multiple eye-catching design details, including a large chest patch pocket and smocked cuffs. In addition to blue and white stripes like Fey and Clarkson wore ...

Since it's arguably the most versatile top, we did a little online shopping for you and rounded up ... dark blue jeans for the ultimate denim-on-denim ensemble. Everyone needs a great button-down ...