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Cobalt Blue Formal Dresses

Make a statement in bold, beautiful cobalt blue formal dresses designed to stand out. This rich, eye-catching color flatters every skin tone and feels just right for weddings, galas, proms, or any night that calls for something special. At Ever-Pretty, you’ll find styles in soft chiffon, sleek satin, and timeless lace—each one made to fit and feel amazing. Looking for something with sleeves? A classic A-line? A curve-friendly fit? We’ve got you covered, from long sleeve gowns to plus size evening styles. Cobalt is more than a trend—it’s your power color.

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Plus Size Long Empire Waist Evening Dress With Short Flutter Sleeves #color_Sapphire Blue Plus Size Long Empire Waist Evening Dress With Short Flutter Sleeves #color_Sapphire Blue

+ 40

pretty MONICA
Plus Size Empire Waist V Back Bridesmaid Dress with Short Sleeves
$73.99
Plus Size Floor Length Formal Evening Gowns for Weddings #color_Sapphire Blue Plus Size Floor Length Formal Evening Gowns for Weddings #color_Sapphire Blue

+ 21

pretty ASTRAL
Plus Size Floor Length Formal Evening Gowns for Weddings
$84.99
Plus Size Women's Embroidery Evening Dresses with Short Sleeve #color_Sapphire Blue Plus Size Women's Embroidery Evening Dresses with Short Sleeve #color_Sapphire Blue

+ 21

pretty SAPHIR
Plus Size Women's Embroidery Evening Dresses with Short Sleeve
$84.99
Shimmery V Neck Ruffle Sleeves Sequin Maxi Long Evening Dress #color_Sapphire Blue Shimmery V Neck Ruffle Sleeves Sequin Maxi Long Evening Dress #color_Sapphire Blue

+ 22

ever ASTRAL
Shimmery Ruffle Sleeves Maxi Sequin Evening Dress
From $84.99
Women's A-Line Sequin Leaf Maxi Prom Dress with Sleeves #color_Sapphire Blue Women's A-Line Sequin Leaf Maxi Prom Dress with Sleeves #color_Sapphire Blue

+ 20

ever SAPHIR
Women's A-Line Sequin Leaf Maxi Prom Dress with Sleeves
$84.99
Long Chiffon Empire Waist Bridesmaid Dress with Short Flutter Sleeves #color_Sapphire Blue Long Chiffon Empire Waist Bridesmaid Dress with Short Flutter Sleeves #color_Sapphire Blue

+ 37

ever MONICA
Long Chiffon Empire Waist Bridesmaid Dress with Short Flutter Sleeves
$73.99
Glitter V-Neck High Slit Sequin Shoulder Strap Evening Dress #color_Sapphire Blue Glitter V-Neck High Slit Sequin Shoulder Strap Evening Dress #color_Sapphire Blue

+ 14

ever NOIRE Stretch
Glitter V-Neck High Slit Sequin Shoulder Strap Evening Dress
$72.99
Chiffon High Empire Waist Puff Sleeve Bridesmaid Dress #color_Sapphire Blue Chiffon High Empire Waist Puff Sleeve Bridesmaid Dress #color_Sapphire Blue

+ 19

ever CELESTE
Chiffon High Empire Waist Puff Sleeve Mother Dress
$69.99
Gorgeous V Neck Leaf-Sequined Fishtail Party Dress #color_Sapphire Blue Gorgeous V Neck Leaf-Sequined Fishtail Party Dress #color_Sapphire Blue

+ 16

ever DIONE
Gorgeous V Neck Leaf-Sequined Fishtail Party Dress
$99.99
Plus Size Glitter V-Neck High Slit Sequin Shoulder Strap Evening Dress #color_Sapphire Blue Plus Size Glitter V-Neck High Slit Sequin Shoulder Strap Evening Dress #color_Sapphire Blue

+ 14

pretty NOIRE Stretch
Plus Size Glitter V-Neck High Slit Sequin Shoulder Strap Evening Dress
$72.99
Short Sleeves Leaf Sequin A-Line Midi Formal Wedding Guest Dress #color_Sapphire Blue Short Sleeves Leaf Sequin A-Line Midi Formal Wedding Guest Dress #color_Sapphire Blue

+ 15

ever SIMONE
Short Sleeves Leaf Sequin A-Line Midi Formal Wedding Guest Dress
$79.99 $84.99
Plus Size Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue Plus Size Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue

+ 15

pretty ALIX
Plus Size Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress
$79.99
Sparkling Short Sleeve V-Neck Ribbon Waist A-Line Evening Dress #color_Sapphire Blue Sparkling Short Sleeve V-Neck Ribbon Waist A-Line Evening Dress #color_Sapphire Blue

+ 13

ever LIORÉ
Sparkling Short Sleeve V-Neck Ribbon Waist A-Line Evening Dress
$69.99
See-Througth Puff Sleeve Chiffon Plus Size Bridesmaid Dress #color_Sapphire Blue See-Througth Puff Sleeve Chiffon Plus Size Bridesmaid Dress #color_Sapphire Blue

+ 24

pretty CELESTE
Plus Size See-Through Puff Sleeve Chiffon Mother Dress
$69.99
Plus Size Dazzling Empire Waist See-Through Long Sleeves A-Line Evening Dress #color_Sapphire Blue Plus Size Dazzling Empire Waist See-Through Long Sleeves A-Line Evening Dress #color_Sapphire Blue

+ 11

pretty BRYM
Plus Size Dazzling Empire Waist See-Through Long Sleeves A-Line Evening Dress
$86.99
Plus Size Sparkly A-Line Midi Tulle Formal Wedding Guest Dress with Leaf Sequin #color_Sapphire Blue Plus Size Sparkly A-Line Midi Tulle Formal Wedding Guest Dress with Leaf Sequin #color_Sapphire Blue

+ 15

pretty SIMONE
Plus Size Sparkly A-Line Midi Tulle Formal Wedding Guest Dress with Leaf Sequin
$79.99 $84.99
Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue

+ 15

ever ALIX
Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress
$79.99
Fashion Plus Size V Neck Mermaid Sequin & Tulle Evening Dress #color_Sapphire Blue Fashion Plus Size V Neck Mermaid Sequin & Tulle Evening Dress #color_Sapphire Blue

+ 17

pretty DIONE
Fashion Plus Size V Neck Mermaid Sequin & Tulle Evening Dress
$99.99
Plus Size Elegant Lotus Sleeves Chiffon Bridesmaid Dress #color_Sapphire Blue Plus Size Elegant Lotus Sleeves Chiffon Bridesmaid Dress #color_Sapphire Blue

+ 23

pretty OREE
Plus Size Elegant Lotus Sleeves Chiffon Bridesmaid Dress
$76.99
Sparkly Bodice High Low Prom Dresses for Women #color_Sapphire Blue Sparkly Bodice High Low Prom Dresses for Women #color_Sapphire Blue

+ 11

ever ALYNA
Sparkly Bodice High Low Prom Dresses for Women
$76.99
Charming Chiffon Bridesmaid Dress with Lotus Leaf Hemline #color_Sapphire Blue Charming Chiffon Bridesmaid Dress with Lotus Leaf Hemline #color_Sapphire Blue

+ 19

ever OREE
Charming Chiffon Bridesmaid Dress with Lotus Leaf Hemline
$76.99
Plus Size Shiny V Neck Side Split Formal Evening Dress #color_Sapphire Blue Plus Size Shiny V Neck Side Split Formal Evening Dress #color_Sapphire Blue

+ 2

Plus Size Shiny V Neck Side Slit Formal Evening Dress
$49.99
Plus Size Sleeveless V-Neck Empire Waist High Slit Floor-Length Evening Dress #color_Sapphire Blue Plus Size Sleeveless V-Neck Empire Waist High Slit Floor-Length Evening Dress #color_Sapphire Blue

+ 21

pretty SORAYA
Plus Size Sleeveless V-Neck Empire Waist High Slit Floor-Length Evening Dress
$64.99 $69.99
Glittery Empire Waist Long Lantern Sleeves A-Line Evening Dress #color_Sapphire Blue Glittery Empire Waist Long Lantern Sleeves A-Line Evening Dress #color_Sapphire Blue

+ 11

ever BRYM
Glittery Empire Waist Long Lantern Sleeves A-Line Evening Dress
$86.99
Asymmetrical Plus Size Formal Dresses for Prom #color_Sapphire Blue Asymmetrical Plus Size Formal Dresses for Prom #color_Sapphire Blue

+ 11

pretty ALYNA
High Low Sleeveless Plus Size Dresses With Sequin for Evening
$76.99
Women's A-Line Short Sleeve Embroidery Floor Length Evening Dresses #color_Sapphire Blue Women's A-Line Short Sleeve Embroidery Floor Length Evening Dresses #color_Sapphire Blue

+ 10

ever SAPHIR
Women's A-Line Short Sleeve Embroidery Floor Length Evening Dresses
$84.99
Plus Size V-Neck Lantern Long Sleeve Sequin A-Line Evening Dress #color_Sapphire Blue Plus Size V-Neck Lantern Long Sleeve Sequin A-Line Evening Dress #color_Sapphire Blue

+ 11

pretty RAYVEN
Plus Size V-Neck Lantern Long Sleeve Sequin A-Line Evening Dress
$104.99
Glitter High-Low Front Side Slit Ruffled V-Neck Evening Dress #color_Sapphire Blue Glitter High-Low Front Side Slit Ruffled V-Neck Evening Dress #color_Sapphire Blue

+ 12

ever MELODÉ
Glitter High-Low Front Side Slit Ruffled V-Neck Evening Dress
$76.99
Plus Size Sequin Mermaid Formal Dress #color_Sapphire Blue Plus Size Sequin Mermaid Formal Dress #color_Sapphire Blue

+ 11

pretty PALMER
Plus Size Sequin Mermaid Formal Dress
$79.99
Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue

+ 14

ever ALIX
Short Sleeves Sequin High Low V-Neck Midi Mother of the Bride Dress
$79.99
Plus Size V-Neck Glittery Short Sleeves Formal Evening Dress with Empire Waist #color_Sapphire Blue Plus Size V-Neck Glittery Short Sleeves Formal Evening Dress with Empire Waist #color_Sapphire Blue

+ 10

pretty DAPHNE
Plus Size V-Neck Glittery Short Sleeves Formal Evening Dress with Empire Waist
$89.99
Delivery Within 4 Business Days
Chiffon High Empire Waist Puff Sleeve Bridesmaid Dress #color_Sapphire Blue Chiffon High Empire Waist Puff Sleeve Bridesmaid Dress #color_Sapphire Blue

+ 20

ever CELESTE
Long Sleeve Chiffon A-Line Empire Waist Formal Dress
$69.99
Chiffon High Slit Sleeveless V-Neck Empire Waist Evening Dress #color_Sapphire Blue Chiffon High Slit Sleeveless V-Neck Empire Waist Evening Dress #color_Sapphire Blue

+ 20

ever SORAYA
Chiffon High Slit Sleeveless V-Neck Empire Waist Formal Evening Dress
$64.99 $69.99
Shimmering All Over V-Neck Long Lantern Sleeve Sequin A-Line Evening Dress #color_Sapphire Blue Shimmering All Over V-Neck Long Lantern Sleeve Sequin A-Line Evening Dress #color_Sapphire Blue

+ 11

ever RAYVEN
Shimmering All Over V-Neck Long Lantern Sleeve Sequin A-Line Evening Dress
$97.99 $104.99
Back Cutout A-Line Pleated Ruffles Sleeve Chiffon Bridesmaid Dress #color_Sapphire Blue Back Cutout A-Line Pleated Ruffles Sleeve Chiffon Bridesmaid Dress #color_Sapphire Blue

+ 25

ever LILYANA
Back Cutout A-Line Pleated Ruffles Sleeve Chiffon Bridesmaid Dress
$76.99
Glitter V-Neck High Slit Sequin Shoulder Strap Wedding Guest Dress #color_Sapphire Blue Glitter V-Neck High Slit Sequin Shoulder Strap Wedding Guest Dress #color_Sapphire Blue

+ 14

ever NOIRE Stretch
Glitter V-Neck High Slit Sequin Shoulder Strap Wedding Guest Dress
$72.99
Sleeveless V-Neck Empire Waist High Slit Floor-Length Evening Dress #color_Sapphire Blue Sleeveless V-Neck Empire Waist High Slit Floor-Length Evening Dress #color_Sapphire Blue

+ 13

ever SORAYA
Sleeveless V-Neck Empire Waist High Slit Floor-Length Evening Dress
$64.99 $69.99
Plus Size Short Sleeves Sequin V-Neck Formal Evening Dress with Tulle #color_Sapphire Blue Plus Size Short Sleeves Sequin V-Neck Formal Evening Dress with Tulle #color_Sapphire Blue

+ 7

pretty NAVEYA
Plus Size Short Sleeves Sequin V-Neck Formal Evening Dress with Tulle
$69.99 $76.99
Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue Short Sleeves Sequin High Low V-Neck Midi Formal Evening Dress #color_Sapphire Blue

+ 15

ever ALIX
Short Sleeves Sequin High Low V-Neck Midi Formal Wedding Guest Dress
$79.99
Plus Size Sequin Mermaid Formal Dresses #color_Sapphire Blue Plus Size Sequin Mermaid Formal Dresses #color_Sapphire Blue

+ 9

pretty HAYLEN
Plus Size Sequin Mermaid Formal Dress
$85.99 $95.99
Shimmery V Neck Ruffle Sleeves Sequin Maxi Long Evening Dress #color_Sapphire Blue Shimmery V Neck Ruffle Sleeves Sequin Maxi Long Evening Dress #color_Sapphire Blue

+ 20

ever ASTRAL
Ruffle Sleeves Leaf Sequin Maxi Bridesmaid Dress
$84.99
Plus Size Elegant High-Low Sleeveless Empire Waist Birdesmaid Dress #color_Sapphire Blue Plus Size Elegant High-Low Sleeveless Empire Waist Birdesmaid Dress #color_Sapphire Blue

+ 8

Plus Size Elegant High-Low Sleeveless Empire Waist Bridesmaid Dress
$19.99 $29.99
Halter Neck Pleated Glittery Formal Evening Dress with Empire Waist #color_Sapphire Blue Halter Neck Pleated Glittery Formal Evening Dress with Empire Waist #color_Sapphire Blue

+ 12

ever EVERLAINE
Halter Neck Pleated Glittery Formal Evening Dress with Empire Waist
$79.99
V-Neck Glittery Short Sleeves Formal Evening Dress with Empire Waist #color_Sapphire Blue V-Neck Glittery Short Sleeves Formal Evening Dress with Empire Waist #color_Sapphire Blue

+ 10

ever DAPHNE
V-Neck Glittery Short Sleeves Formal Evening Dress with Empire Waist
$89.99
Plus Size Sequin Leaf Midi Evening Dresses #color_Sapphire Blue Plus Size Sequin Leaf Midi Evening Dresses #color_Sapphire Blue

+ 13

pretty TAYLOR
Plus Size Sequin Leaf Midi Evening Dress
$74.99
Floral Sequin Ruffled Sleeve Mermaid Formal Dresses #color_Sapphire Blue Floral Sequin Ruffled Sleeve Mermaid Formal Dresses #color_Sapphire Blue

+ 11

ever PALMER
Sequin Embroidery Mermaid Formal Dress
$79.99
Sequin Mermaid Round Neck Dress #color_Sapphire Blue Sequin Mermaid Round Neck Dress #color_Sapphire Blue

+ 9

ever HAYLEN
Sequin Mermaid Round Neck Dress
$85.99 $95.99
Sweetheart Neckline One Shoulder with Floral Tulle High Slit Bridesmaid Dress #color_Sapphire Blue Sweetheart Neckline One Shoulder with Floral Tulle High Slit Bridesmaid Dress #color_Sapphire Blue

+ 10

ever CLOE
Sweetheart Neckline One Shoulder with Floral Tulle High Slit Bridesmaid Dress
$79.99