Blue One Shoulder Cocktail Dresses

Blue one shoulder cocktail dresses are your secret weapon for making a jaw-dropping entrance and leaving a little sparkle wherever you go. There’s just something about that bold pop of blue and an asymmetrical neckline that says, “I came to slay.” Whether you’re RSVP’ing yes to every invite or planning a night out with your ride-or-die crew, these dresses are here to boost your confidence and your Insta game. Get ready to turn heads, break hearts, and dance the night away—because when you show up in blue one shoulder cocktail dresses, the party doesn’t start until you walk in.

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$69.90

5 star rating

An elegant navy blue satin midi dress featuring off-the-shoulder sleeves, floral appliqué, and lace-up back.

Sale

$19.97 $119.90 83% off

5 star rating

A navy blue glitter knit formal dress featuring an off-the-shoulder neckline and mermaid silhouette.

$49.90

A navy blue mesh midi dress featuring cold shoulder cutouts, adjustable straps, and a bodycon silhouette.

Sale

$9.97 $34.90 71% off

5 star rating

A royal blue knit mini dress featuring a one-shoulder design and bold asymmetric bust cutout.

Sale

$28 $38.90 28% off

A navy blue velvet mini dress with an asymmetric one-shoulder neckline and dramatic balloon sleeve.

$99.90

4.5 star rating

A light blue floral jacquard skater dress featuring a corset bodice, metallic threading, and hidden pockets.

Best Seller

$34.90

5 star rating

A navy blue knit mini dress featuring a ruched sweetheart neckline and off-the-shoulder bodycon silhouette.

$79.90

5 star rating

A blue floral mesh dress featuring an off-the-shoulder ruffled neckline and elegant mermaid silhouette.

$59.90

4.333334 star rating

A chic navy blue midi dress with a glitter knit fabric, high slit, and lace-up back.

$38.90

3 star rating

An ombre blue knit mini dress featuring a plunge cowl neckline, hoop insert, and bodycon silhouette.

$54.90

5 star rating

A blue satin midi dress featuring a lace-up back, scoop neckline, and front wrap slit.

$69.90

5 star rating

A navy blue satin mermaid dress featuring a cold shoulder neckline and a high front slit.

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Windsor Cheyenne Formal One-Shoulder Velvet Dress in Black-2
(121) 4.8099174 star rating

Lavish yourself with a luxe formal dress that elevates your special occasion outfit! Cheyenne features a one-shoulder neckline, a wired V-neck bust, a fitted long sleeve, a high side slit on the floor-length hem, and a curve-hugging A-line silhouette. The long dress is composed of a lined velvet fabric that offers a moderate stretch. Complete the look with rhinestone heels and a sphere clutch. Fit & FeaturesOne-shoulder neckline, wired V-neck bust, Fitted long sleeve, High side slit, floor-length hem, A-line silhouette, Lined velvet fabric, Form-hugging fit, moderate stretch, Strapless or sticky bra recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Cheyenne Formal One-Shoulder Velvet Dress in Black-2 | Size: S | Rhinestone/Velvet Fabric

Windsor Jamie Lace-Up Satin Formal Column Dress in Red
(70) 4.785714 star rating

Dare to stun in the Jamie satin formal dress crafted with silky satin fabric for a gorgeous sheen. The bold plunge halter neckline and open lace-up back will turn heads while the fitted column silhouette flaunts your curves. Fit & FeaturesSilky satin fabric, short knit stretchy lining, Plunge halter V-neckline, shoulder straps, padded bra cups, Lace-up open back, lower zipper with hook-eye closure, High side slit, Fitted column silhouette, Floor-length hem, Runs true to size, Where to Wear:Prom, weddings, galas, and black-tie soirees. Free Shipping on All Orders Over $75. | Windsor Jamie Lace-Up Satin Formal Column Dress in Red | Size: XS | Knit Fabric/Satin Fabric

Windsor Marjorie Formal Chiffon Sleeve Midi Dress in White
(42) 4.571429 star rating

Sophistication meets sultry on the Marjorie formal dress perfect for cocktail parties and dressy family get-togethers. She features sheer chiffon peasant long sleeves, a square neckline, a bodycon silhouette, and a front ruched seam leading to the skin-flaunting slit along her midi-length hem. The formal dress is composed of a lined crepe fabric with a moderate stretch. Style with a chic clutch and heels to complete the look! Fit & FeaturesSheer chiffon peasant long sleeves, square neckline, Front ruched seam, slit detail, Bodycon silhouette, Midi-length hem, Lined crepe fabric, moderate stretch, Bra-friendly design, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marjorie Formal Chiffon Sleeve Midi Dress in White | Size: S | Chiffon/Crepe Fabric

Chic Staple Ribbed Knit Skater Dress in Black
(39) 4.6923075 star rating

A chic staple skater dress featuring a flirty off-the-shoulder folded neckline and a short-length perfect for styling with boots or heels. Fit & FeaturesRibbed knit fabric with plenty of stretch, Off-the-shoulder neckline, fold-over accent, Long fitted sleeves, Short-length hem, Skater silhouette, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Chic Staple Ribbed Knit Skater Dress in Black | Size: M | Knit Fabric

Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black
(36) 4.5833335 star rating

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: L | Knit Fabric

Windsor Saige Formal Sequin Lace-Up Mermaid Dress in Lavender
(34) 4.7352943 star rating

A sparkling sequin scroll pattern adds beauty and shine to the glamorous Saige formal long dress! With a lace-up back that turns heads, a curve-hugging mermaid silhouette, and a high slit for a gorgeous look. Fit & FeaturesSequin scroll pattern, mesh fabric, stretchy full knit lining, Sleeveless plunge V-neckline, padded bust, Spaghetti straps, open lace-up back detail, Back zipper and hook-eye closure, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie events, glam functions, and parties. Free Shipping on All Orders Over $75. | Windsor Saige Formal Sequin Lace-Up Mermaid Dress in Lavender | Size: XS | Knit Fabric/Mesh Fabric/Mesh Fabric

Lucille Formal Satin Mermaid Dress in Coral
(29) 4.827586 star rating

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

Marylou Lace Mesh Plunge Neck Formal Dress in Black
(26) 4.8076925 star rating

Bring the romantic allure to the evening affair in the Marylou lace mesh plunge formal dress! She embodies flirtatious style in a sleeveless plunge V-neckline with a built-in padded bust and adjustable spaghetti straps on her empire waist bodice. The sparkly embroidered lace mesh fabric effortlessly flows into a floor-length silhouette with a high-side slit to showcase some legs. She also features a curve-conscious silhouette to flaunt your stunning figure! Complete the look in an elegant hair clip. Fit & FeaturesPlunge V-neckline, adjustable spaghetti straps, Adhesive bra recommended, built-in padded bust, High side slit, back zipper, hook and eye closure, Empire waist, form-fitting silhouette, Floor-length hem, Sparkly embroidered lace mesh fabric, full knit lining, moderate stretch, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marylou Lace Mesh Plunge Neck Formal Dress in Black | Size: L | Knit Fabric/Mesh Fabric/Mesh Fabric

Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Green
(25) 4.84 star rating

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: XS | Knit Fabric

Emmie Lace-Up Mermaid Satin Formal Dress in Brown
(22) 4.590909 star rating

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 Brown | Size: L | Satin Fabric

Blue One Shoulder Cocktail Dresses

Blue one shoulder cocktail dresses are basically your all-access pass to the best-dressed list at any event where “dress to impress” is the vibe. With their signature asymmetrical neckline, these dresses turn every entrance into a main character moment—think one shoulder out, confidence all the way up. Whether you’re headed to a rooftop party, a wedding reception, or a night out with your ride-or-die crew, this style brings the perfect blend of elegance and edge. The blue palette is a total scene-stealer, too. Deep navy shades give off major old-Hollywood glam, while royal and cobalt blues are made for the girl who loves to stand out and own her spotlight. Lighter hues like powder or sky blue keep things playful and fresh, perfect for day-to-night plans that start with brunch and end with dancing under the stars. These dresses come in all the lengths you could dream up—mini for the bold, midi for the classic, and maxi for the drama queens. The fabric game is strong, too: satin for that sleek, liquid shine; tulle for a little flirty volume; sequins for anyone who believes sparkle is a lifestyle, not just a detail. And don’t even get us started on the extras—think ruffles, high slits, and asymmetrical hems that add movement and attitude to every step.

If you’re shopping for a blue one shoulder cocktail dress, it’s all about finding the one that matches your energy and the occasion. For semi-formal events or when you want to be the best-dressed guest, a sleek satin midi in a rich blue is basically foolproof. Heading to a dressier bash or a formal celebration? Sequined or embellished styles dial up the drama and guarantee you’ll catch the light (and a few compliments). These dresses also make unforgettable gifts for the friend who’s always RSVP-ing “yes” to every invite or the sister who loves a moment in the spotlight. Styling is where you get to let your personality shine: statement earrings or a bold cuff bracelet show off the neckline, while strappy heels or barely-there sandals keep the look elevated. If you’re all about comfort but still want to serve, chic flats or even a block heel will keep you dancing all night. Hair-wise, a side-swept look or a high ponytail frames the neckline and lets the dress do all the talking. Pro tip from the besties’ group chat: don’t forget a strapless or convertible bra for seamless support—nothing ruins a killer vibe like a peeking strap. And if you want to mix it up with another iconic look, check out our collection of Strapless Blue Cocktail Dresses for even more ways to slay in blue.

Wearing a blue one shoulder cocktail dress is more than just a fashion choice—it’s a whole mood. It’s for the girls who know how to light up a room, who turn every event into a memory, and who aren’t afraid to take a little risk with their style. These dresses are designed to flatter, with cuts and fabrics that hug, drape, and move in all the right ways, making you feel like your most confident self. They’re the ultimate go-to for everything from milestone birthdays to sorority formals, and they’re just as perfect for a spontaneous night out as they are for a planned celebration. When you slip into a blue one shoulder cocktail dress, you’re not just getting dressed—you’re setting the tone for the night, bringing the good vibes, and reminding everyone that confidence is always the best accessory.

Top Picks For Blue One Shoulder Cocktail Dresses