Gray, a color between black and white, can be roughly divided into dark gray and light gray.

Neutral gray in the store design gives a feeling of calm.

It's hard to go too wrong with gray. 

It seems to go with any color. Because of its neutrality, it is often used as a background color. It makes other colors stand out. 

As mentioned earlier, you can use light gray instead of white or dark gray instead of black. 

For a warmer, more earthy gray, use taupe, which is a brown color with a light gray tinge.

Use grays and soft pinks to create a feminine touch, while dark colors paired with grays can create a more masculine look.