An invitation that says "cocktail" or "black tie" is really telling you how long your hem should be, which fabrics fit in and how dressed-up to go. Below, we break down every common dress code for women, explain what it asks for, and point you to the dresses that match.
Quick comparison of women's dress codes
| Code on the invite | How formal | Hem length | Where you'll see it |
|---|---|---|---|
| White Tie | The highest level | Gown that reaches the floor | Opera nights, state dinners, formal balls |
| Black Tie | Highly formal, after dark | Floor-length gown or refined maxi | Awards nights, galas, evening weddings |
| Black-Tie Optional / Formal | Formal | Maxi or a dressed-up midi | Charity benefits, formal weddings |
| Cocktail | Upper end of semi-formal | Midi or knee-length | Receptions, dinners, cocktail parties |
| Semi-Formal | Polished yet easygoing | Anywhere from knee to midi | Office parties, daytime weddings |
| Festive / Holiday | Dressy with a playful side | Mini through midi, shine encouraged | New Year's Eve, holiday parties |
| Casual / Daytime | Laid-back | Sundress or mini | Showers, garden parties, brunch |
Each dress code explained, with outfit ideas
What women wear to black tie
This is the traditional formal-evening standard. Choose a gown that reaches the floor, or a refined maxi cut from a substantial fabric such as velvet, satin, chiffon or understated sequins. Black is completely fine here, and deep gem shades like burgundy, sapphire and emerald work well too. Leave casual pieces, short flirty cuts and daytime prints at home.
Browse: black-tie dresses · maxi dresses · satin styles · sequin styles
What women wear to formal events
This code is a little more flexible than strict black tie. A floor-length gown is still a safe pick, though a refined maxi or a dressed-up midi fits in just as well. Look for good fabrics and careful details, and keep the overall look polished.
Browse: formal dresses · maxi styles · midi styles
What women wear to cocktail events
You'll see this code more than any other, and it balances polish with a bit of fun. Reach for a midi or knee-length dress; lace, satin, bodycon cuts and light sequin detailing are all fair game. A floor-length gown is too much, and anything casual is too little. It covers weddings, dinners and parties with ease.
Browse: cocktail dresses · bodycon styles · midi styles · white cocktail styles
What women wear to semi-formal events
Think put-together but not stiff, sitting just under cocktail. A midi or knee-length dress in a quality fabric is ideal, and you can keep the styling a bit plainer than you would for cocktail. It suits daytime weddings, dinners out and work celebrations.
Browse: midi dresses · wedding guest styles · satin styles
What women wear to festive events
Treat this as cocktail attire with extra shine allowed. Metallics, velvet, sequins and deep gem colors are exactly what the host has in mind. Either a mini or a midi is fine, so lean into the sparkle for New Year's Eve and holiday get-togethers.
Browse: sequin dresses · velvet styles · party styles
Casual and daytime outfits
Keep it easy: a sundress, a floral print or a mini works for bridal showers, brunch and garden parties. Pick soft, comfortable fabrics and gentle patterns, and skip anything structured or stiff.
Browse: floral dresses · mini styles · bridal shower styles
Shop by event
Common dress code questions
How should a woman dress for a black-tie event?
Go for a gown that reaches the floor or a refined maxi made from a formal fabric such as satin, velvet, chiffon or understated sequins. Black works, and so do deep gem colors. Leave short, casual or daytime-print dresses out of the running.
How is cocktail attire different from semi-formal?
Both land somewhere between the knee and mid-calf. Cocktail leans a little dressier and is tied to evening events like parties and receptions, while semi-formal is slightly looser and often used for daytime. If you're unsure, a cocktail dress will work for either.
Is black acceptable at a black-tie wedding?
Absolutely. A black gown or refined maxi is one of the most reliable choices for black tie. Just make sure the cut and fabric feel formal and suited to an evening event, not casual.
How long should my dress be for each code?
For white tie and black tie, go floor-length or maxi. Formal calls for a maxi or a dressed-up midi. Cocktail and semi-formal sit between the knee and midi. Festive ranges from mini to midi, and casual means a mini or sundress. The chart at the top of this page shows it visually.
What does cocktail attire mean for a wedding guest?
Pick a midi or knee-length dress in a quality fabric like lace or satin, or one with a touch of sparkle. Save floor-length for black-tie events and avoid anything too casual. Finish with heels and understated jewelry.
Shop dresses that match your dress code
Once you've decoded the invitation, pick your dress. New styles are added regularly, and orders of $60 or more ship free.
Browse every dress →Not sure which size to order? Check the Fashionpara dress size guide.