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.
$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 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.
$79.90
A light blue mini dress with faux pearl embellishments, featuring a cowl neckline and open-back design.
$59.90
A navy blue satin midi dress with a pleated cowl neckline and high side slit.
$84.90
A stunning navy blue satin formal dress featuring a lace-up back and high-cut front slit.
$47.90
A lustrous blue satin skater dress with a sleeveless cowl neckline and spaghetti straps.
$74.90
A navy blue glitter knit mermaid dress with a square neckline and lace-up open back.
$79.90
A light blue mesh mermaid gown with faux pearl embellishments and a flattering sweetheart cowl neckline.
$109.90
An elegant navy blue satin gown with a cold shoulder design and sultry front slit.
$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.
$99.90
A light blue bodycon dress with sequin-scroll pattern, draped beading, and adjustable spaghetti straps.
$89.90
A navy blue bodycon dress with glitter polka dots, lace-up back, and adjustable spaghetti straps.
$59.90
A navy blue strapless column dress in slinky knit fabric with pleated seams and a high side slit.
$159.90
A light blue strapless formal dress with beaded mesh, cowl neckline, and high front slit.
$69.90
A navy blue satin glitter mermaid dress with a strapless neckline and pleated bodice.
$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.
$44.90
A blue glitter knit mini dress featuring a pleated cowl neckline, faux wrap front, and bodycon fit.
$64.90
A royal blue satin dress with a lace-up back, V-neckline, and high front slit.
$129.90
An elegant navy blue ball gown featuring romantic ruffles, airy tulle, and a flattering A-line silhouette.
$79.90
A navy blue mermaid formal dress featuring a lace open back and side ruched seams.
$69.90
A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.
$79.90
A royal blue satin mermaid dress with a strappy open back and high front slit.
$79.90
A navy blue mesh mermaid dress adorned with colored rhinestones and faux pearls for a romantic look.
$79.90
A navy blue mermaid dress with a glittery finish, lace-up back, and high front slit.
$69.90
A captivating blue mermaid dress featuring glitter fabric, an open back, and a sweetheart neckline.
$99.90
A light blue mermaid dress with sequin embroidery, cutout back, and high front slit.
$69.90
A blue floral crepe mermaid dress with a sweetheart neckline and high front slit.
$99.90
A stunning light blue formal dress with rhinestone embellishments, featuring a strapless neckline and cowl back.
$69.90
A navy blue satin midi dress with a lace-up back and flattering faux wrap silhouette.
$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.
$99.90
A romantic blue midi dress with a sweetheart neckline and floral garden print on organza fabric.
$64.90
A royal blue formal dress with a V-neckline, strappy back, and high side slit.
$46.90
A navy blue rhinestone mini dress with a cowl V-neckline and adjustable spaghetti straps.
$139.90
A light blue floral mesh dress with ruffles, sheer corset bodice, and adjustable spaghetti straps.
$76.90
A navy blue mermaid formal dress featuring a chiffon tie-back and floral velvet pattern.
$54.90
A royal blue glitter velvet midi dress with a V-neckline, padded bust, and pleated wrap bodice.
$74.90
A navy blue glitter knit one-shoulder dress with a high slit and floor-length silhouette.
$49.90
A royal blue satin midi dress with a lace-up back, square halter neckline, and side slit.
$69.90
A light blue mermaid dress with glitter, lace-up back, and high front wrap slit for formal events.
$59.90
A navy blue satin midi dress with a high slit and elegant cowl neckline.
$99.90
A navy blue mermaid gown with glitter knit fabric, cowl neckline, and adjustable spaghetti straps.
$89.90
A sophisticated navy blue satin dress with a strapless neckline and pleated mermaid silhouette.
$119.90
A light blue sequin mermaid dress with a lace-up back and high front 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
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! Make your entrance in this floor-length gown designed to turn heads with a curve-flaunting mermaid fit and backless design. Fit & FeaturesGlitter knit fabric, moderate stretch, Square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout, Where to Wear:Weddings, black tie galas, formal dances, big birthday events, rehearsal dinners, engagement parties, red carpet occasions, upscale glam parties Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black | Size: S | Knit Fabric
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
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 Sage | Size: L | 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 Brown | Size: M | Knit Fabric
Flattery will get you everywhere in the Delia formal long dress that boasts a flattering mermaid silhouette with a high front slit for effortless allure all evening! Fit & FeaturesLined smooth knit fabric, moderate stretch, Sleeveless cowl neck, pleating, Spaghetti straps, lace-up back, Mermaid silhouette, High front slit, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, engagement parties, rehearsal dinners, milestone celebrations, dinner parties, and dressy date nights. Free Shipping on All Orders Over $75. | Windsor Delia Formal Cowl Neck Long Dress in Mauve | Size: XL | Knit 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
Prepare to make a grand entrance in the Ashelyn glitter long formal dress looking like a true masterpiece for prom or special birthday events! Her luxurious knit fabric boasts a mesmerizing glitter pattern, while the side ruching and mermaid silhouette accentuate your curves while the high front slit shows off your shoes of the night. The cowl neckline and padded bra cups offer a flattering and comfortable fit. Style this formal gown with glam earrings and a hair accessory for a stunning look all evening! Fit & FeaturesGlitter pattern, knit fabric lined with jersey knit, Padded bra cups, Adjustable spaghetti straps, High front slit, Back zipper and hook-eye closure, Mermaid silhouette, floor-length, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Ashelyn Cowl Neck Glitter Mermaid Formal Dress in Black | Size: XS | Knit Fabric
Sleek and sophisticated! The Emmie satin formal dress exudes elegance with a lace-up back and flattering mermaid silhouette that accentuates your figure. Fit & FeaturesStretchy satin-knit fabric, lined bust, Spaghetti straps, V-neckline, Lace-up back, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie galas, weddings, bridesmaids, formal parties, and red-carpet events. Free Shipping on All Orders Over $75. | Windsor Emmie Lace-Up Mermaid Satin Formal Dress in Sage | Size: XS | Satin 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.