Modern MacBooks and Apple Studio Displays are equipped with a hardware feature called “True Tone.” Using an advanced ambient light sensor embedded in the bezel, the Mac constantly analyses the color temperature of the room you are sitting in (e.g., harsh fluorescent office lights versus warm, incandescent living room lamps). The operating system then dynamically shifts the color profile of your display on the fly to match the ambient lighting, making the screen appear warmer (more orange) or cooler (more blue) to reduce eye strain.
While True Tone makes reading text much more comfortable, it is a catastrophic feature for anyone working in visual mediums. If you are a graphic designer color-grading a photograph, a video editor, or a web developer designing a user interface, True Tone will actively sabotage your work. The colors you see on your screen are being artificially altered by the operating system, meaning the final image you export will look completely different to everyone else. To guarantee absolute color accuracy and ensure your display is rendering raw, mathematically perfect RGB values, you must completely disable True Tone.
Disabling True Tone via Displays Settings
You can instantly turn off this algorithmic color shifting directly from the primary Displays menu.
- Click the Apple Logo in the top-left corner of your Mac’s screen and select System Settings… (or “System Preferences” on older macOS versions).
- Scroll down the left-hand navigation sidebar and click on Displays.
- Look at the main panel on the right side. If you have multiple monitors connected, ensure your primary built-in Mac display is selected at the top.
- Locate the toggle switch labelled True Tone.
- Click the toggle switch to turn it Off.
The change takes effect instantly. You will likely notice an immediate, sharp shift in the color temperature of your screen (usually becoming noticeably cooler and bluer) as the operating system stops aggressively warming the image to match your room lighting. Your Mac’s display is now locked into a static, highly accurate color profile, ensuring that pure white is always rendered as pure white, regardless of the physical environment you are working in.