Navy Blue Semi Formal Dresses
Navy blue semi formal dresses are here to turn every RSVP into a reason to celebrate. Whether you’re headed for a night out with your ride-or-die crew or making an entrance at that can’t-miss event, these dresses serve up major main character energy. With the perfect blend of elegance and edge, you’re set to steal the spotlight—no permission needed. Get ready to say yes to every invite, because navy blue semi formal dresses are about to make you the best-dressed guest in the group chat.
$69.90
A navy blue knit mermaid dress featuring a halter V-neckline and striking strappy open back design.
$39.90
A navy blue satin mini dress featuring a strapless neckline, side pleats, and a flattering A-line silhouette.
$69.90
A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.
$79.90
A navy blue mermaid dress with a glittery finish, lace-up back, and high front slit.
$79.90
A navy blue mesh mermaid dress adorned with colored rhinestones and faux pearls for elegant formal occasions.
$42.90
A navy blue bodycon mini dress featuring glitter mesh, adjustable straps, and a ruched design.
$42.90
A navy blue knit midi dress with a sleeveless cowl neckline and chic high front slit.
$59.90
A navy blue satin wrap midi dress with a cowl neckline and adjustable spaghetti straps.
$29.97 $59.90 50% off
A glamorous navy blue glitter knit dress with a cowl neckline and sultry high side slit.
$89.90
A navy blue bodycon dress with glitter polka dots, lace-up back, and adjustable spaghetti straps.
$109.90
An elegant navy blue satin gown with a cold shoulder design and sultry front slit.
$39.97 $119.90 67% off
An elegant navy blue A-line gown with glittery sequins and a strappy open back.
$99.90
An elegant navy blue satin dress with a lace-up back and high slit for formal occasions.
$59.90
A navy blue velvet mini dress with a sequin pattern, lace-up back, and bodycon silhouette.
$38.90
A glamorous navy blue mini dress in glitter satin with a bodycon silhouette and adjustable straps.
$99.90
A navy blue mermaid gown with glitter knit fabric, cowl neckline, and adjustable spaghetti straps.
$74.90
A navy blue glitter knit one-shoulder dress with a high slit and floor-length silhouette.
$69.90
A navy blue off-shoulder mermaid dress with a high slit, crafted from smooth knit fabric.
$34.90
A navy blue satin-knit midi dress with a strapless neckline and ruched detailing for a chic silhouette.
$59.90
A navy blue velvet midi dress with a corset bodice, cowl neckline, and front wrap slit.
$69.90
A navy blue velvet mermaid dress with a corset bodice and lace-up back design.
$109.90
A chic navy blue mermaid dress with sequins, featuring a lace-up back and thigh-high slit.
$59.90
A navy blue satin midi dress with a pleated cowl neckline and a high side slit.
$74.90
A navy blue glitter knit mermaid dress with a square neckline and lace-up open back design.
$54.90
A navy blue satin midi dress with a corset seam bodice and pleated side seam.
$89.90
A shimmering navy blue A-line gown with a sleeveless cowl neckline and high-cut front slit.
$69.90
A navy blue satin glitter mermaid dress with a strapless neckline and pleated bodice.
$44.90
A navy blue bodycon mini dress featuring rhinestone mesh and a square neckline for glamorous occasions.
$9.97 $62.90 84% off
A navy blue velvet dress featuring an off-shoulder neckline and corset mesh-illusion bodice.
$42.90
A navy blue velvet midi dress with a sleeveless sweetheart neckline and pleated bodice.
$69.90
A navy blue off-the-shoulder mermaid dress with glitter fabric and a glamorous high front slit.
$52.90
A navy blue glitter knit bodycon dress with a V-neckline and adjustable spaghetti straps.
$79.90
A sultry navy blue mermaid dress featuring a lace open back and side ruched seams.
$54.90
A navy blue floral satin dress with a lace-up back and flirty A-line silhouette.
$59.90
A navy blue satin formal dress featuring a halter neckline, open back, and high front slit.
$99.90
A navy blue velvet mermaid dress with sequin embroidery and an open lace-up back.
$89.90
A sophisticated navy blue satin dress with a strapless neckline and pleated mermaid silhouette.
$76.90
A navy blue mermaid dress with a chiffon tie-back and floral velvet pattern for formal occasions.
$9.97 $42.90 77% off
A navy blue glitter mini dress with a one-shoulder neckline and sheer fitted long sleeve.
$79.90
A navy blue satin formal dress featuring a strapless neckline and a high side slit.
$59.90
A navy blue satin formal dress with a strapless neckline, padded cups, and a high wrap slit.
$59.90
A navy blue velvet mermaid dress with a floral pattern, sleeveless cowl neckline, and high-side slit.
$69.90
A strapless navy blue mermaid dress with glitter fabric and a high front slit for elegance.
$119.90
A navy blue ball gown featuring a glitter corset bodice and lace-up back for elegant occasions.
$79.90
A navy blue satin formal dress with a mermaid silhouette and high front slit for elegance.
$69.90
A navy blue glitter satin formal dress featuring a pleated cowl neckline and high-cut front slit.
$99.90
A navy blue sequin formal dress featuring a form-hugging silhouette and sultry front wrap slit.
$59.90
A navy blue velvet wrap dress featuring a sleeveless square neckline, ruching, and a high slit.
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Chic and glamorous, the Rowena sequin mermaid long dress will stylishly elevate your formal night-out look. With a lace-up strap design and fitted mermaid silhouette with a high slit, you'll deliver stunning style. Fit & FeaturesSheer mesh fabric, knit lining, moderate stretch, embroidered sequin scroll design, Sleeveless square neckline, padded bust, Spaghetti straps, open back, lace-up strap design, tie closure, Lower back zipper with hook and eye closure, High waist seam, Fitted floor-length mermaid silhouette, high front slit, Runs true to size, Where to Wear:Prom, black-tie parties and galas, fancy engagement parties Free Shipping on All Orders Over $75. | Windsor Rowena Sequin Mermaid Dress in Navy Blue | Size: M | Knit Fabric/Mesh Fabric/Sheer Mesh Fabric
Windsor Lola Formal High Slit Glitzy Glitter Dress in Navy Blue
$29.97 $59.90
50% off
Flaunt your glam style in the fabulous Lola high slit glitter dress! She features a trendy cowl neckline with a slim-fit bodice, a floor-sweeping silhouette with a sultry high side slit to elongate your legs, and a form-hugging fit. She is composed of glitzy glitter knit fabric that offers a curve-hugging fit with a moderate stretch. Pair this gorgeous long dress with a sleek ring set to add some glamour to your look for your special occasion. Fit & FeaturesCowl neckline, spaghetti straps, Slim-fit bodice, form-hugging fit, Floor-length silhouette, Thigh-high side slit, Glitter knit fabric, mini-length inner knit lining, moderate stretch, Sticky bra recommended, Runs true to size, The saturation of glitter varies. Glitter may transfer. Free Shipping on All Orders Over $75. | Windsor Lola Formal High Slit Glitzy Glitter Dress in Navy Blue | Size: L | Knit Fabric
Effortlessly elegant, the Sophie glitter knit mermaid dress would be a stunning choice for a formal gala. She features a square neckline, short puff sleeves, a partially open back with a lace-up strappy design for a customized fit, a high waist seam, a floor-length hem, and a mermaid silhouette with a high front slit to showcase your heels. The glitter knit fabric offers a moderate stretch. Complete the look in this long dress with rhinestone statement earrings. Fit & FeaturesSquare neckline, Short puff sleeves, Open back, lace-up strappy design, tie closure, High waist seam, Floor-length hem, mermaid silhouette, front slit, Glitter knit fabric, moderate stretch, Sticky bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Sophie Glitter Knit Mermaid Dress in Navy Blue | Size: S | Knit Fabric/Rhinestone
The Gwendolyn glitter knit bow-back mermaid dress will have you sparkling up the night with a glamorous allure. She features a sleeveless square neckline, a bold backless design, a high waist seam, a chic bow accent at the lower back with a flowy floor-length train, a floor-sweeping hem with a mermaid silhouette, and a form-hugging fit. Style this long dress with a rhinestone clutch for a black-tie wedding. Fit & FeaturesSleeveless square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Form-hugging fit, Glitter knit fabric, Sticky bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Light Blue | Size: L | Knit Fabric/Rhinestone
The Lucille formal satin dress will have you looking and feeling radiant and luxe! The dress captivates with a lace-up back, mermaid silhouette, and high front slit for effortless allure. Fit & FeaturesLined satin knit fabric, minimal stretch, Sleeveless square neckline, padded bust, adjustable spaghetti straps, Open lace-up back design, zipper and hook-eye closure, Fitted bodice, front ruched seam, high-cut slit, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black tie galas, red-carpet events, nights at the opera or theatre, big milestone celebrations Free Shipping on All Orders Over $75. | Windsor Lucille Formal Satin Mermaid Dress in Coral | Size: L | Knit Fabric/Satin Fabric
Spend an evening in the timeless elegance of the Alicia floor-length formal dress and feel like a work of art! The side ruched seams accentuate your curves along the mermaid silhouette, and the high front slit adds a touch of drama to the floor-length hem. Fit & FeaturesSmooth knit fabric lined with stretchy knit, Padded bra cups, Back zipper and hook-eye closure, High front slit, Mermaid silhouette, Runs true to size, Where to Wear:Prom, galas, black tie parties, weddings, bridesmaids, nights at the theatre and opera, red-carpets Free Shipping on All Orders Over $75. | Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Green | Size: S | Knit Fabric
Make it an elegant entrance in the Priscilla formal satin dress with a curve-hugging mermaid silhouette and floor-sweeping hem for dramatic flair. Fit & FeaturesLined silky satin fabric, minimal stretch, Strapless sweetheart neckline, Pleated, lightly padded bust, non-slip grip lining, Slim-fit bodice, high waist seam, hip-hugging fit, Floor-sweeping hem, mermaid silhouette, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black-tie galas and events, and fancy milestone celebrations. Free Shipping on All Orders Over $75. | Windsor Priscilla Formal Satin Strapless Mermaid Dress in Taupe | Size: M | Satin Fabric
Sleek and sultry, the Kathie formal satin dress is destined to shine at banquets, galas, and black-tie weddings! She features a sophisticated one-shoulder neckline, a wide shoulder strap, a pleated side seam, a mermaid silhouette, and an asymmetrical high front slit along her graceful long hem. The formal dress is composed of luxurious satin-lined fabric with a sheen effect and minimal stretch. Complete the look with hoop earrings. Fit & FeaturesOne-shoulder neckline, wide shoulder strap, Back zipper and hook-eye closure, Pleated side seam, asymmetrical high front slit, Mermaid silhouette, long hem, Lined silky satin fabric, sheen effect, minimal stretch, Strapless bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Kathie Formal Satin One-Shoulder Dress in Gold-2 | Size: M | Satin Fabric
Stun in the Shay formal glitter dress that makes your entrance that much more glam! Shay features a mermaid silhouette that flaunts your beautiful curves and a floor-length hem for a hint of drama. Fit & FeaturesLine glitter lurex fabric, V-neckline, padded bra cups, Adjustable spaghetti straps, Ruching, mermaid silhouette, Wide banded hem, train , Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout , Where to Wear: Prom, black tie galas and events, red-carpet events, upscale birthdays Free Shipping on All Orders Over $75. | Windsor Shay Formal Lurex Glitter Dress in Rose Gold | Size: XS
Radiate sexy elegance in the Deyna formal long dress perfect for your upcoming black tie soirees! The dress accentuates your curves with side ruched seams and mermaid silhouette create a stunning and flattering shape, while the floor-length hem adds sophistication. Fit & FeaturesAiry mesh fabric, full knit stretchy lining, Off-the-shoulder neckline, ruffled cuffs, cascading ruffles, Back zipper and hook-eye closure, Flexible boning inserts in the bodice, Side ruched seams, mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, fancy garden parties, and dressed-up events. Free Shipping on All Orders Over $75. | Windsor Deyna Formal Mesh Off-The-Shoulder Long Dress in Periwinkle | Size: L | Knit Fabric/Mesh Fabric/Mesh Fabric
Navy Blue Semi Formal Dresses
Navy blue semi formal dresses are basically the main character energy your closet has been waiting for. Whether you’re RSVP-ing for a rooftop party, prepping for a bestie’s engagement dinner, or plotting your next Insta-worthy night out, these dresses are the ultimate plus-one. There’s something about that rich, deep blue—it’s got a mysterious edge, but still feels totally classic. Navy is the secret weapon for anyone who wants to look sophisticated without fading into the background. It flatters every skin tone, plays nice with every accessory (silver, gold, pearls, rhinestones—she’s not picky), and gives off those “I woke up like this” vibes. If you’re gifting a dress, a semi formal blue dress is a total win for birthdays, graduations, or even as a treat-yourself moment. Because let’s be real, everyone deserves a navy moment, whether they’re the star of the show or just living their best life on the dance floor.
If you’re browsing for the perfect navy mini dress formal enough for a night of cocktails but still flirty enough for spontaneous adventures, you’re in the right place. Semi formal attire navy blue styles are having a major moment, and for good reason—they’re the chameleon of your wardrobe. Imagine slipping into a fitted blue dress semi formal enough for a family celebration, but just as ready to hit the after-party with your squad. The magic is in the details: think luxe fabrics that move with you, subtle shimmer that catches the light, or a daring slit that says, “Yeah, I’m here to have fun.” When you’re shopping for windsor semi formal dresses, consider how you want to feel—confident, comfortable, and ready for anything. Maybe you love a classic A-line that twirls with every step, or you’re all about a sleek bodycon that turns heads from across the room. Don’t forget to play with accessories—strappy heels, bold earrings, or a statement clutch can totally change the mood. Navy is all about versatility, so you can go glam or keep it effortless, depending on your vibe.
Let’s be honest, finding your dream semi formal blue dress isn’t just about the dress—it’s about the moments you’ll create in it. Picture yourself making an entrance, owning the room, and feeling like the main event. Navy blue just has that power. It’s perfect for twirling under string lights, posing for group pics, and making memories that’ll live in your camera roll forever. And if you’re looking to level up your navy game even more, check out our curated collection of Elegant Navy Blue Dresses for styles that’ll have you feeling unstoppable. Whether you’re celebrating something big, showing up for your favorite people, or just living for the moment, a navy semi formal dress is always the right move. So go ahead—gas yourself up, bring those good vibes, and let your navy blue look do the talking.