Contrast is the element of interior design that refers to the use of opposite or vastly different elements to create visual interest and depth. It can be achieved through a variety of means, such as the use of different colors, textures, patterns, shapes, and sizes.

Here are some examples of how contrast can be used in interior design:
- Color: Using colors that are opposite on the color wheel, such as red and green or blue and orange, can create a strong contrast. For example, painting one wall in a room a bold color and the others a neutral shade will create a contrast between the two.
- Texture: Combining different textures, such as a rough stone wall with a smooth marble table or soft poufs, can add depth and interest to a space.
- Pattern: Mixing patterns of different scales, such as a large-scale floral wallpaper with a small-scale geometric fabric, can create a visually striking contrast.
- Shape: Using shapes that are opposite or different, such as a round coffee table with angular chairs, creates contrast in a space.
- Size: Using elements of different sizes, such as a large chandelier above a small side table, can create a sense of balance and contrast in a room.

The use of contrast in interior design helps to draw the eye and create visual interest, making a space more dynamic and visually appealing.