Black, or noir in French, is frequently regarded as a classic and sophisticated colour. It is a versatile colour that works well with many other colours and can be dressed up or down. 

However, the context and individual preference can determine whether something is deemed “classy” or not. Black may be viewed as a timeless and elegant option in some settings, such as a formal event or business meeting. 

Black might not be the best option in other circumstances, like a relaxed gathering or a summer party. In the end, whether or not noir is regarded as classy depends on personal preferences and the setting in which it is worn or used.

But nowadays we can see many people has started to use Black or Noir in their house or any space especially for someone who really adores elegancy and classiness.

In interior design, black can be used to create a sense of elegance and sophistication. It can be used to accentuate other colors or to add contrast to a room. Black can be incorporated into a space through furniture, accessories, or even as an accent wall.

In graphic design, black is often used to create contrast, to make text or images stand out, and to convey a sense of sophistication or elegance. It is also commonly used in logos and branding to convey a sense of strength and authority.

Noir is often used because:

1. Sophistication and Elegance.

Black is often associated with luxury, sophistication, and elegance. By incorporating black into an interior design scheme, it can create a sense of refinement and style.

2. Timelessness.

Black is a classic color that never goes out of style. It can be incorporated into a design scheme in many ways and will always look modern and chic.

Black has been a popular color choice for centuries and has remained a popular choice through many design trends and eras. It has a classic appeal that never goes out of style.

Black  also can serve as a neutral base color that can be layered with other colors and patterns to create a dynamic and interesting design scheme.

3. Contrast.

Black is a great way to create contrast in a space. By using black in a room with lighter colors, it can make the lighter colors pop and give the space a sense of depth.

When black is paired with lighter colors, such as white or pastels, it creates a sharp contrast between the two colors.

This contrast can make the lighter colors appear brighter and more vibrant while also adding depth and dimension to a space.

For example, if you have a predominantly white room with black accents, the black will stand out and create a striking contrast against the white walls, furniture, and decor. 

Similarly, if you have a room with a lot of light-colored wood, adding black accents or furniture can create a bold and striking contrast.