A LITTLE WARMTH. A LOT OF CONTROL.

Make your Mac
feel like evening.

The right light for whatever comes next.
Precise screen warmth, quietly in your menu bar.

Coming soon for Mac

One purchase. No subscription. macOS 26 or later.

1000–10000 K Exact temperatureOn your schedule Sunset or custom timesTrue-color captures Screenshots stay untouched

SMALL DETAILS. EVERY DAY.

Set the mood.
Keep your precision.

Start with a preset. Make it yours. Let Kelvin handle the transitions.

Choose an exact Kelvin value and adjust green–magenta tint. Save your favorite combinations as presets, each with its own hotkey.

Follow sunset and sunrise, or set your own hours with a gradual fade. Pause for an hour or until sunrise whenever plans change.

Hold a hotkey to peek at true colors. Set rules for individual apps and displays, so your photo work can stay neutral while your reading stays warm.

Dim below your display’s lowest brightness setting, or switch to red mode. Your screenshots and screen recordings keep their original colors.

BUILT TO STAY OUT OF YOUR WAY.

No Kelvin account. No ads or app analytics. Settings stay on your Mac, with optional iCloud preset sync through your Apple account.

A WARMER MAC IS ON THE WAY.

Kelvin is coming soon to the Mac App Store.
One purchase includes every feature.

For macOS 26 or later Built-in and supported external displays

AirPlay, Sidecar, and DisplayLink displays are not supported.