Image: NPR

As the groom, all eyes will be on you (and your partner) on your wedding day, so of course you want to look your best. Need help figuring out what to wear? Don't worry—I have got you covered. Follow these rules below to look stylish when you are at the altar.

Rule 1: Your suit or tux should fit the formality.

At the most basic level, your attire should be appropriate for your venue and match with the overall theme of the wedding. If your wedding is in the daytime or outdoors, you can wear something a bit more casual, think about lighter-colored suits made of less formal fabrics.

If it's an evening affair in a ballroom or tush hotel, go with either a dark, well-tailored suit or a tux. Want to get even more formal? Then choose a white tie (a black suit, white shirt and white bow tie) as it is the ultimate in formal wear and ideal for an extra-classy venue. 

Rule 2: Your attire should coordinate with your wife. 

Another old one, but it has to be said: Remember, your wedding is your first opportunity to show off your style as a couple, so make it a cool effort. While you may not know exactly what your partner is wearing, you'll want to be sure your styles work together.

So if her dress is a embellished ball gown, you won't want to wear a casual linen suit—a classic black tux is more like it. Other combos that may work are a vintage lace gown paired with a tailored tan suit, or a pretty city-chic gown with a slim-cut gray suit. 

Rule 3: Your body type should dictate the suit. 

The key to looking dapper is dressing for your body type. If you’re tall and slim, most tuxedos and suits will look good on your frame. To add to your frame, try a double-breasted suit, which is sure to make you look broader.

To slim down, try a fitted suit with a little bit of a nip in the waist to give the impression of a leaner stature. Skip lighter-colored suits since darker colours are slimming. And to add more height, go for a two­ or three­-button jacket. 

Rule 4: The fit should be perfect. 

Even the most expensive suit in the store will look and feel awkward if it doesn't fit right. You should be able to move around easily—do lots of twists, turns and arm raises to make sure there's plenty of space to show off your dancing skills.

Regardless of whether you’re renting or buying your suit, most stores will custom tailor the purchase. Here are a few basic tailoring rules:

The jacket sleeve hem should fall at the wristbone with about one-fourth to one half inch of the shirt cuff showing below.

The bottom hem of the jacket should cover the butt and the vent shouldn't be made to pull open. If it does, that means the suit is too tight.

The collar should lay flat on the back and sides of the neck without any gaps or bulges visible.

Pants should fit comfortably when standing and sitting and move across the top of the shoes so they cover the top one-third.

A bow tie should fit snugly around the collar.

Rule 5: Your look should coordinate with your men. 

Traditionally, the groomsmen wear attire that's the same as or very similar to that of the groom, but this decision is definitely yours to make. Even if you aren't planning for all the men in your wedding party to wear the exact same suit or tux, it's important that their outfits match in style and theme with yours. We know that it will look a little bit distracting if you’re up there in a tux while your buddies are wearing casual lightweight suits.

Matching doesn't just end with the guys either—your whole wedding party should have a coordinating style. To achieve this, pair your groomsmen style to that of the bridesmaids—for instance, if the bridesmaids are rocking pink dresses, the guys can wear colours in pink, cream or even Purple.

Rule 6: Your accessories should set you apart. 

Now that everyone is matching and coordinated, it's time to pick what would distinguish you. To achieve a totally unique look, it's all in the details.

Spice things up and wear a unique bow tie, vest, necktie or cuff links in a different color or style. If your wedding theme has two colors, you can wear one of the shades while the rest of the guys wear the other.

For the most classy look, have the groomsmen each wear a suit with a black bow tie and black vest, while you wear a white tie and white vest. How dapper would that look? Don’t be afraid to infuse your personality into your outfit.