Childish contrast
The color can be contrasted in the children's rooms. You can focus on a neutral color and add a color, like pink, to create a bold world, but suitable for children.
Contrast in the kitchen
In this kitchen, contrast is the key to decoration. The two walls are contrasted with the gray furniture and the checkered floor.
Inverted contrast
These are the keys that come with the contrasting black and white decor. In the bathroom, the opposite is true, with white pieces brightening up dark areas.
Double contrast
In this kitchen, the black cabinets make a double contrast to the glossy walls, as well as the light wood countertops that provide character to the kitchen.
More information - CHow to add a touch of color to the decoration
Source - Leroy Merlin