Light and dark mode image in HTML

Chris Bongers - Oct 29 '20 -

Did you know you can change images bases on the user preferred Color-scheme?

This nifty piece of code could already be used in CSS, but did you know it works directly in HTML?

We can detect if the user prefers a dark or light color schema and show a different image to them based on that!

It will look like this:

HTML Structure

<picture>
  <source srcset="dark-mode.png" media="(prefers-color-scheme: dark)">
  <img src="light-image.png">
</picture>

That's is it!

By default, it will show the light image, but it will show the dark image if the person prefers the dark scheme.

Feel free to have a play with this on Codepen.

The support for prefers-color-scheme is getting better, but still not a reliable option to choose.

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