April 7th, 2025 × #CSS#Accessibility#Frontend
Light and Dark Mode
Discussion on adding light and dark modes to sites, considerations when doing so, and new CSS features to help
Wes Bos Host
Scott Tolinski Host
#891
Light mode? Dark mode? Scott and Wes break down the best ways to implement theme switching in CSS, from prefers-color-scheme to manual overrides. Plus, tips on handling shadows, icons, and the dreaded flash of dark mode!
Show Notes
- 00:00 Welcome to Syntax!
- 01:05 Brought to you by Sentry.io.
- 02:06 Light and dark mode, things to consider.
- 02:31 Light and dark mode from scratch.
- drop-in.css.
- 04:41 Calculations vs assigned color.
- 05:32 color-mix and relative color.
- 08:15 Foreground and background variables.
- --tint-or-shade: color-mix(in oklab, var(--fg), transparent 95%);
- --tint-or-shade-harder: color-mix(in oklab, var(--fg), transparent 90%);
- 09:13 Setting color scheme.
- 12:38 light-dark function in CSS.
- 15:48 Manually setting dark mode.
- 19:52 Shoehorning in dark mode.
- 22:25 Other things to consider.
Hit us up on Socials!
Syntax: X Instagram Tiktok LinkedIn Threads
Wes: X Instagram Tiktok LinkedIn Threads
