Blue Semi Formal Dresses
Ready to turn heads and steal the spotlight? Blue semi formal dresses are your ticket to main character energy, whether you’re owning the dance floor, making an entrance at a dinner party, or just living your best life. From deep navy to dreamy sky hues, these dresses bring all the confidence and cool-girl vibes you need to make every moment unforgettable. Go ahead—pick your fave blue semi formal dress and let your bold side shine.
$74.90
A navy blue glitter knit mermaid dress with a square neckline and lace-up open back design.
$39.97 $119.90 67% off
An elegant navy blue A-line gown with glittery sequins and a strappy open back.
$79.90
A navy blue mermaid formal dress featuring a lace open back and side ruched seams.
$139.90
A light blue floral mesh dress with ruffles, sheer corset bodice, and adjustable spaghetti straps.
$64.90
A royal blue formal dress with a V-neckline, strappy back, and high side slit.
$29.97 $89.90 67% off
A royal blue satin gown with a cowl neckline, high slit, and flattering A-line silhouette.
$59.90
A navy blue satin wrap midi dress with a cowl neckline and adjustable spaghetti straps.
$109.90 - $149.90
A light blue mermaid dress with sequin-scroll mesh, padded bust, and lace-up back for formal events.
$44.90
A glamorous blue satin skater dress featuring a lace-up back 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.
$59.90
A navy blue satin midi dress with a pleated cowl neckline and a high side slit.
$79.90
A light blue mini dress with faux pearl embellishments, featuring a cowl neckline and open-back design.
$47.90
A lustrous blue satin skater dress with a sleeveless cowl neckline and spaghetti straps.
$39.97 $119.90 67% off
A dazzling royal blue sequin dress with a cowl neck, open-back, and sultry front slit.
$69.97 $149.90 53% off
A luxurious light blue formal dress with faux pearl beading, cowl neckline, and high front slit.
$79.90
A light blue mesh mermaid gown with faux pearl embellishments and a flattering sweetheart cowl neckline.
$89.90
A glamorous light blue mermaid dress with glitter knit fabric, ruching, and a stylish back cutout.
$64.90
A navy blue satin bodycon dress featuring a corset bodice and asymmetrical wrap hem.
$89.90
A navy blue bodycon dress with glitter polka dots, lace-up back, and adjustable spaghetti straps.
$99.90
A light blue bodycon dress with sequin-scroll pattern, draped beading, and adjustable spaghetti straps.
$109.90
An elegant navy blue satin gown with a cold shoulder design and sultry front slit.
$69.90
A navy blue satin glitter mermaid dress with a strapless neckline and pleated bodice.
$159.90
A light blue strapless formal dress with beaded mesh, cowl neckline, and high front slit.
$77 $109.90 30% off
A royal blue mermaid dress with sequin scrolls, adjustable straps, and a high front slit.
$59.90
A navy blue slinky knit mermaid dress featuring a sweetheart neckline, cowl draping, and high front slit.
$59.90
A navy blue strapless column dress in slinky knit fabric with pleated seams and a high side slit.
$44.90
A blue glitter knit mini dress featuring a pleated cowl neckline, faux wrap front, and bodycon fit.
$129.90
An elegant navy blue ball gown featuring romantic ruffles, airy tulle, and a flattering A-line silhouette.
$89.90
A glamorous light blue mermaid dress with rhinestone and pearl embellishments on lined mesh fabric.
$64.90
A royal blue satin dress with a lace-up back, V-neckline, and high front slit.
$69.90
A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.
$69.90
A navy blue glitter crepe mermaid dress with a cutout bodice and high front wrap slit.
$59.90
A navy blue satin formal dress featuring a halter neckline, open back, and high front slit.
$99.90
A light blue mermaid dress with sequin embroidery, cutout back, and high front slit.
$69.90
A captivating blue mermaid dress featuring glitter fabric, an open back, and a sweetheart neckline.
$119.90
A royal blue formal dress with iridescent sequins, lace-up back, and a mermaid silhouette.
$69.90
A blue floral crepe mermaid dress with a sweetheart neckline and high front slit.
$64.90
A navy blue knit mermaid dress featuring a cowl neckline, spaghetti straps, and an open tie-back design.
$99.90
A navy blue velvet mermaid dress with sequin embroidery and an open lace-up back.
$46.90
A navy blue rhinestone mini dress with a cowl V-neckline and adjustable spaghetti straps.
$99.90
A stunning light blue formal dress with rhinestones, featuring a strapless neckline and cowl back design.
$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.
$54.90
A royal blue glitter velvet midi dress with a V-neckline, padded bust, and pleated wrap bodice.
$49.90
A royal blue satin midi dress featuring a lace-up back, side slit, and square halter neckline.
$89.90
A sophisticated navy blue satin dress with a strapless neckline and pleated mermaid silhouette.
$69.90
A light blue mermaid dress with glitter, lace-up back, and high front wrap slit for formal events.
$99.90
A romantic blue midi dress with a sweetheart neckline and floral garden print on organza fabric.
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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
Blue Semi Formal Dresses
When the dress code says “semi formal” but your vibe is anything but basic, blue semi formal dresses for women are the ultimate move. There’s just something about slipping into a blue dress that instantly makes you feel like the main character—think midnight blue for that mysterious, starry-night allure, or a dreamy sky blue that’s pure sunshine and compliments. Whether you’re heading to a wedding, a swanky dinner, or that invite-only rooftop party, blue brings the perfect blend of bold and classic. It’s the color that goes with every mood, every skin tone, and every “I want to stand out without trying too hard” moment. And let’s be real: blue is the color that looks just as fire in the group pics as it does in your solo mirror selfies. Windsor semi formal dresses are designed for those who want to walk in and own the room, no apologies necessary. The right blue dress isn’t just an outfit—it’s your hype squad, your confidence boost, and your secret weapon for making memories that’ll have everyone talking.
Shopping for blue semi formal dresses for women is kind of like picking your own adventure. Maybe you’re the girl who loves a classic silhouette with a twist—think a little ruching here, a daring slit there, or a back detail that’s just waiting for a double-take. Or maybe you’re all about those unexpected textures: satin that catches the light just right, or mesh and lace that give off a flirty edge. These dresses are made for every occasion that calls for a little extra effort, but not so much that you can’t dance, laugh, and live your best life. They’re also a killer gift for your bestie who’s got a calendar full of events, or for that sister who always “borrows” your clothes and never gives them back. (We see you, little sisters.) When you’re picking out your dress, think about the details—adjustable straps for the perfect fit, pockets for your phone and lip gloss, and necklines that match your mood. And if your style leans more toward the romantic, don’t sleep on the dreamy vibes of Light Blue Floral Formal Dresses—they’re basically made for twirling under fairy lights.
The best part about blue semi formal dresses is how effortlessly they flex to fit your plans. Got a last-minute invite? Throw on a blazer or a statement necklace and you’re golden. Heading out for a night that might turn into morning? Blue’s got your back, looking fresh from dinner to dance floor and beyond. And if you’re playing the role of Maid of Honor, birthday girl, or just the friend who always brings the fun, these dresses make sure you’re ready for every photo op and every spontaneous adventure. Think of blue as your style safety net—no matter how wild the night gets, you’ll look put together, confident, and totally unforgettable. So go ahead, pick your favorite shade, find your perfect fit, and let your blue dress do the talking. After all, you deserve to feel as bold and beautiful as you truly are, every single time you step out.