Images aspect ratios

The aspect ratio of an image is the proportional relationship between its width and its height. Aspect ratios are commonly written as a formula of width to height, like “16:9” or “4:3". The first value corresponds to the width, and the second to the height.
For example, an image with an aspect ratio of 1:1 is a square. So, the width and the height are identical, like 80px x 80px.


Aspect ratios bring consistent image sizes across product and viewports. Using reference image formats in our user interface designs allow :

  • Better anticipation of the image display. It is easier to predict which area of the image will be visible when cropping.
  • Time saving for developers. It is no longer necessary for them to use specific values for each image.

Here are the 6 recommended ratios to build your components :

  • 16:9
  • 3:2
  • 4:3
  • 1:1
  • 3:4
  • 2:3

Do's and don'ts

Maintain the proportional relationship between width and height when resizing.

Don't use referenced aspect ratios for very specific use cases such as wide images (hero) or images outside the parent container.