23 Cool 30th Birthday Outfit Ideas

Thirty is a milestone year and worthy of dressing up for! Have you thought about some 30th birthday outfit ideas yet? If not, Peerspace has some amazing ideas to share with you. Come have a look! We cover bohemian, classic, baddie, and other looks you might not have considered yet.

1. Create an easy denim jacket and black dress look

A denim jacket and black dress is a look that’s so easy to pull off that you might already have everything you need in your wardrobe. You get a touch of classy and casual from the look that few outfits can match!

2. Go with a leather jacket and jeans

For men, the leather jacket and jeans look has classic appeal that’s hard to ignore! A leather bomber or biker jacket gets our vote. Both look great paired with your favorite pair of denim jeans, ripped if you want to enhance the biker look or any other style, depending on your preferences.

Before you start picking out accessories, think about booking the party venue in advance, something that Peerspace has plenty to share! Our birthday venues include this event space in Seattle, WA. You’ll have a bar top, sound system, arcade games, and more for your guests to enjoy during the party.

3. Wear your favorite oversized sweater

An oversized sweater is an attention-grabbing upper that’s the foundation for many a great 30th birthday outfit idea. We like patterned sweaters with a solid-colored bottom. For example, this oversized sweater and black leggings combo is just the outfit to wear for a birthday brunch party with friends!

4. Dazzle and impress with white on white

Solid white is one way to really make a statement for your 30th birthday. A few of our favorite ideas include a white blouse with white wide pants or a white denim jacket over a white t-shirt. Or how about an all-white jumpsuit with white framed sunglasses and other accessories to complete the white-on-white look?

5. Discover new patterns with a colorful poncho

Looking to add some boho style to your wardrobe? A lovely patterned wool poncho is just what you need! It’s a very flexible garment that adds some warmth on a cool fall or winter day. It works equally well with a button-down t-shirt and jeans or solid-color leggings and boots.

6. Try on some neutral shades

Neutral colors can make a stunning 30th birthday outfit from almost anything in your closet. The colors are what matter most: stick with the neutral shades of black, tan, white, and cream. From there, you can build an outfit like this brown midi dress, white top, and cream hat!

Once you have chosen the perfect outfit, you’ll need these beautiful 30th birthday photoshoot ideas to commemorate the moment.

7. Relax with a sweatshirt with jeans

Even casual 30th birthday outfit ideas can still look well put together when the colors and patterns are well chosen. Wearing your favorite sweatshirt is as much a statement about you and your preferences as it is about fashion. Just the thing for a birthday celebration! 

8. Match the decor to your dress

One way to really showcase how much thought has gone into your party prep is to choose 30th birthday outfit ideas that match the venue. For example, pick out a red floral print midi dress to go with a venue filled with flowers and hearts. Or a blue blouse with white denim jeans for a nautical birthday party.

9. Get dressy with a cocktail dress

Cocktail dresses are classy without being over the top for most birthday parties. Plus, they can be a dressier option if the party is going to be a formal affair. Do you want to go with a strapless neckline or not? Solid color or patterned? We think this copper cocktail dress is just the thing for a party that’s going to be held in a downtown loft, restaurant, or bar!

A cocktail party is a fun way to celebrate your 30th year in style! So, check out some of the upscale venues that Peerspace has to offer. This Prohibition-era speakeasy in Chicago, IL, is one of the most exciting places we have to hold a 30th birthday party.

10. Keep it simple with a monochrome outfit

There’s a lot of visual power in choosing a single color for your 30th birthday outfit idea. Bold colors like red, pink, and yellow work especially well! One of our favorites is this orange dress with matching heels and earrings.

11. Show off your legs with a stylish mini dress

A mini dress is a classy choice you can wear any time of year. Add some leggings if fall or winter’s chill is in the air. Otherwise, show your legs off with pride and pair this dress with sunglasses and a handbag for an easy 30th birthday outfit idea!

12. Follow the latest trends with a Tik-Tok outfit

Tik-Tok outfits have style trends all their own that you can embrace! From punk to 2000s era fashion, a trendy Tik-Tok outfit will be instantly recognizable to anyone who knows what’s on your feed. Check out The Trend Spotter for a few ideas on how to use fashion trends to build a Tik-Tok outfit.

13. Wear a flashy party suit at your birthday

Party suits have the kind of flash you might want for a birthday party outfit that a traditional suit in neutral tones can’t match. Choose a crisp velvet suit in a solid shade with a matching bow tie like the one in the image above. Or if you want to go even more extra, a colorful patterned party suit with a matching tie is the way to go.

14. Welcome winter with a winter wonderland outfit

How about a seasonal outfit for welcoming winter? The winter wonderland aesthetic is a delightful approach to an end of the year 30th birthday party! Start with all-white (or white with light pink and blue). Fur trimmed boots, scarves, and pom-pom beanies in the same shade are all you need to accessorize and complete this outfit.

15. Go ultra-casual with a hoodie and bottom combination

Want a 30th birthday outfit that’s cozy and ultra-casual? A hoodie with the bottom of your choice gets the nod from us! A hoodie and leggings have major athleisure appeal to them. Or you could go with something even cozier, like a pair of sweatpants or jeans.

16. Try on a blazer dress

Can’t decide between a blazer and a dress? The blazer dress is the right one-piece outfit for you, then! It incorporates the best of both worlds in the colors and patterns of your choice. Add leggings if you want some extra color or contrast, along with a fashionable handbag to complete this look.

17. Stay hip with the baddie look

Who says you need to wear what everyone else does for your 30th birthday? Reject all styles, save your own with a baddie outfit! Pull from the 90s with a bucket hat, go athleisure with a hot pink top and pants, or try one of Trend Spotter’s awesome baddie outfits.

These creative 30th birthday party themes for the big milestone are exactly what you need to plan an epic party. Check them out!

18. Dress to the nines with a tuxedo

A tuxedo and black bow tie are what you’ll need if the party is going to be a dressy affair. It’s a timeless look that’s undeniably classy. You can always sneak in a little flair with some custom cufflinks or other splashes of color that won’t disrupt the overall aesthetic of the tux and tie look!

19. Go seasonal with a burgundy leather skirt and top

Burgundy is a color that’s nice year-round but has a seasonal vibe that’s perfect for a fall or winter birthday. Try something daring like this burgundy leather skirt and pair it with a matching top. A sweater, blouse, or simple long-sleeved shirt in the same shade form the foundation here. Pair with leggings or long boots for a truly stylish cool weather outfit!

20. Embrace the elegance of a tea party outfit

Is your 30th birthday going to be a tea party or other vintage-themed celebration? Then pick out something colorful with plenty of ruffles, lace, and length. This long floral dress is one of those 30th birthday outfit ideas that would be wonderful for an Instagram-worthy tea party with friends. Also check out Peerspace’s elegant tea party outfit ideas for even more inspiration!

21. Choose the timeless appeal of an all-denim look

Denim is one of the most popular fabrics for a reason. In fact, you can build an entire outfit using denim. Try a blue denim jacket with white jeans, a one-piece denim jumpsuit, or even a denim blazer dress!

22. Pick out an oversized blazer

An oversized blazer or blazer dress is a wonderful foundation for any outfit. Since it’s going to dominate the look, choose something flashy like a blazer with sequins or in a bold shade like bright yellow before accessorizing and choosing a bottom!

23. Try Western fashion with a fringe dress and cowboy boots

Western fashion is an awesome option, especially if you have a birthday photoshoot planned. It’s an outfit that’s reserved for special occasions like a birthday party. Add a cowboy hat and sunglasses for an incredibly stylish look!

30th birthday outfit ideas: conclusion

Are our 30th birthday party outfit ideas cool or what? Peerspace is the best place to find not just fashionable outfits, though. We also have the largest online collection of birthday party venues near you. So come and explore them while you’re here!

Find unique party venues for your birthday on Peerspace