Skip to Content

Is it OK to Wear a Blue Blazer with Black Slacks?

Is it OK to Wear a Blue Blazer with Black Slacks?

The blazer is a staple of fashion and a must-have for any woman’s wardrobe and fashion repertoire.

Blazers are amazing at helping you blend into any setting, whether it’s business-casual or high-end.

They’re versatile, come in a variety of styles, shapes, and colors to help you feel and look your best!

Is It OK to Wear a Blue Blazer With Black Slacks?

From royal blue to gorgeous light, teal color, blue blazers can fit any occasion and can be worn around the office just the same! You can definitely wear a blue blazer with your favorite pair of black slacks for formal, business, or casual occasions. The best practice is to combine different materials or to wear a white shirt to create a contrast between black and blue. This look works best with plain colors, however, you can choose an accessory with a black and blue pattern. This helps to connect the black and blue in your outfit. 

Blazer Colors


When done correctly, blue and black is a noble combination

I love to wear my dark, navy-blue blazer to work meetings when meeting with new clients, and when out on the town.

If you’re looking at purchasing a new blue blazer, you might be wondering is it OK to wear a blue blazer with black slacks?

The answer is, absolutely!

A little fashion finesse is needed for this combination so that the outfit looks “intended”, your purpose was to combine those colors.

And not as if you have made a mistake in the colors. 

Things to Know Before Combining Black and Blue

  • The fabrics matter a lot. Don’t choose a similar fabric. It is necessary to choose a different fabric since you just have slight color contrast. So that it does not seem like you simply took out the wrong color, you should set contrasts with the fabric as well. For example, a slightly shiny slack or a leather slack will definitely create a contrast. 


  •  Wear deep black, no washed-out blacks. Same for the blue, the blue should still be a nice dark blue. 


  • When in doubt, wear a white shirt underneath it. This will help to emphasize the contrast and it’s clearer for the eye what is blue and what is black. 


  • It does not need to be navy blue, also cobalt blue is a nice color to combine with black. The advantage: cobalt blue is different than black, so it will give a nice hint of color to the look and will definitely look intended.


  • If possible choose accessories that have the same colors in them, black and blue and a third color. This will also help to make your intention clear to wear those colors together. 

Outfit Ideas with Black and Blue

Before I choose my black and blue outfit, I always check the colors in daylight.

Colors are changing depending on the light and with those two colors, you wanna make sure that they look good together. 

Then I see if I can create contrasts with accessories.

For example, a belt to create a line between black and blue.

Here comes the Color blocking into play.

Color blocking means you are wearing 2 or 3 colors, usually bold tones such as blue, orange, and pink.

The key is that the pieces don’t have any pattern, which means you are dividing your look into color surfaces. 

This scheme can also be applied for the blue and black look.

However, make sure you are wearing black shoes if you have black slacks. 

You have your blue blazer and you have your black slacks.

If they are very similar in the material, wear a white shirt underneath it. This emphasized the contrast. 

Color-Coordinating Black and Blue

Black and blue make for a gorgeous color combination, so it’s quite easy already to pair a blue blazer with black slacks.

Black is known as the most versatile color in the color wheel, having the ability to pair seamlessly with any color, including blue!

If your blazer ranges from dark blue to royal blue, indigo, teal, or baby blue, these all go great with black.

For the black and blue outfits, I would avoid patterns. Unless you find a pattern containing black and blue.

But black slacks with a navy white striped shirt looks like you’ve taken the wrong shirt, thinking that the stripes are blue.

The combination of black and blue works best with plain colors.

If you’re not a fashion enthusiast and don’t know about scaling patterns, color combination theory, how to choose one dominant print over the other, or simply don’t want to go through the headache of having to pair patterns, it’s best to stick with either of 2 options:

1. All black slacks with a patterned blue blazer

2. All blue blazer with patterned black slacks

Considering Textures of your Clothes

Is it OK to Wear a Blue Blazer with Black Slacks

Works also with leather slacks: blue blazer and black leather 

Just like patterns, blazers and slacks can come in a variety of textures and be made of various materials.

As mentioned, the material is key to creating a contrast between the colors and emphasizes your intention to wear black and blue together.

The simple rule might be: 

1. All black slacks made of regular fabric (e.g cotton) with a textured blue blazer (e.g velvet)

2. All blue blazer with unique textured black slacks (e.g waffle pattern) 

Depending on the event and the theme, you might be able to pull off an all-velvet blazer-slacks combo, or an all-corduroy combo. One of the safest combinations is leather trousers and a blue blazer.

Matching Blouses

Is it OK to Wear a Blue Blazer with Black Slacks

Works also with dark blue denim: the Black and Blue Look

When wearing black slacks with a blue blazer, I prefer to choose a blouse that has muted colors or a simple pattern (provided it matches with my blazer and slacks).

I like to wear an all-white blouse, an all-black blouse, or even a light orange or fuchsia-colored blouse.

This is because blue combines well with orange on the color wheel!

One of my favorite winter combinations is a black turtleneck with my blue blazer!

I like to stick with these color combinations since I’m already mixing colors with blue and black.

However, for more formal events, I might incorporate a gold or glitter blouse, paired with accent gold jewelry!

Blue and gold top layers give off a royal, elegant feel, and work well with black bottoms.

A Little Thought Goes a Long Way

Pairing black slacks with your blue blazer is easier than it seems.

Black is such a versatile color, it’s easy to find a comfortable pair of slacks to combine with your blazer.

Consider any patterns, texture, accessories, and other layers you’ll combine with your blazer and slacks to make the perfect go-to outfit for any occasion!

If you want to know if your partner can wear a navy blue shirt and black trousers, check out this article. 

Frequently Asked Questions about a Blazer

Can I Wear a Blazer with Jeans?

The blazer-jean combo has been around for quite some time now, and it’s a perfect combination for a casual outing! If your company has a policy against wearing jeans at the office, however, it’s best to avoid jeans until casual Friday!

How Do I Accessorize a Blazer?

You can accessorize your blazer using earrings, watches, necklaces, a pair of sunglasses, and even scarves during the chilly weather. Your accessories can match your black slacks as well! Some great colored jewelry you can pair with a blue blazer is orange bangles, orange hoop earrings, or gold jewelry.