What is True Tone on Mac and how to turn it off
True Tone uses ambient light sensors to shift your display's color balance so that white looks white under different lighting conditions — office fluorescents, warm lamps, direct sunlight. Some people love it. Designers and photographers often turn it off because it masks the actual color of their work.
Which Macs have True Tone
True Tone is a built-in display feature, so it's only available on Macs with an integrated screen that includes the necessary ambient light sensors. Here's the current lineup:
- MacBook Pro — 2018 and later
- MacBook Air — 2018 and later
- iMac 24-inch (M1 and later)
- Mac Pro — doesn't have a built-in display, and most external monitors don't support True Tone. The Pro Display XDR does support it.
- Mac mini and Mac Studio — no built-in display, so no True Tone regardless of which external monitor you connect.
If True Tone doesn't appear in your Display settings, your Mac doesn't support it — it won't be hidden, it just won't be there.
Turn True Tone on or off
The toggle is in one place: System Settings → Displays. Look for the True Tone checkbox near the top of the display options. Tick it to enable, untick it to disable. The change is instant — no restart, no log-out.
That's genuinely the whole process. Apple didn't bury this one.
Is there a Terminal command?
No. True Tone is driven by a hardware ambient light sensor and a private system framework — there's no defaults write key that controls it. Any Terminal snippet you find online claiming to toggle True Tone is either outdated or unreliable. Use System Settings.
When to turn True Tone off
True Tone is genuinely useful for reading and general use, but there are situations where it works against you:
- Photo and video editing — True Tone shifts the white point based on your room light, so the colors you're editing look different than they will on a calibrated monitor or when printed. Most color-critical workflows call for True Tone off and a calibrated ICC profile instead.
- Checking white balance in design — if you're designing something where exact whites matter (print layout, product mockups, web backgrounds), True Tone can make an off-white read as white or vice versa.
- Presenting on a projector or external display — projectors don't support True Tone, so your MacBook screen and the projected image will look different if True Tone is on. Turning it off means both outputs look closer to identical.
- Side-by-side monitor comparison — if you're using an external monitor alongside your MacBook display, True Tone on the MacBook can make the two screens look mismatched in terms of warmth.
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True Tone vs Night Shift vs display calibration
These three display features are independent of each other and are easy to mix up:
- True Tone — continuously adapts the display's white balance in real time based on the ambient light sensor. It's always running (when enabled) and reacts to your environment.
- Night Shift — applies a fixed warm tint to the whole display on a time schedule (typically after sunset). It doesn't react to the room; it reacts to the clock.
- Display calibration — sets a specific ICC color profile so the display renders colors to a defined standard (like D65 white point for video, or a specific gamma curve for print). Calibration is independent of both True Tone and Night Shift, though for calibrated work you typically disable both.
You can run all three simultaneously, but for color-accurate work the sensible setup is: calibration on, True Tone off, Night Shift off.