Colour Tint is a feature of iOS 10 buried so deep in the settings it was almost missed. Its quite different from NightShift mode as it acts like a red filter over the entire screen, turning all the light red.
NightShift on the other hand, only removes some of the blue light, wavelengths, but not all.
Colour tint set to red not only removes all blue wavelengths so protects your melatonin rhythm but can also protect your ‘night vision’ as red light is harder to see than other wavelengths, so your eyes remain dilated – in night vision mode, and better able to re-adjust to the dark afterwards. This is perfect if you have to look at your phone in the middle of the night eg. to check the time.
Here is how a how to video-
or here’s the step by step-
Go to Settings –> General –> Accessibility –> Display Accommodations.
Next, enable “Color Filters” with the switch at the top of the screen, then select “Color Tint” as your filter. From here, scroll down just a little further, then use the Intensity and Hue sliders to make the red effect more prominent. Both should be in the far right position for maximum redness.
Next Set up a short cut so you can triple-click the home button to turn the screen red
Go to Settings –> General –> Accessibility, then scroll all the way to the bottom and select “Accessibility Shortcut.” Choose the “Color Filters” option from the list, and you’re done. Now every time you triple-click the Home button (or Side button on the iPhone X), it’ll switch between normal screen and red tint.
For millennia we have gathered round a fire at night and gazed into the warm red flames. Now we gather round a cool white LED fire bursting with blue light.
TV manufacturers have been making their TVs as bright and as blue as possible. Our brains perceive blue light as brighter and it is more engaging. It makes our brain think that it is still day time so it suppresses our night time physiology which is awash with the most potent antioxidant melatonin.
There is now a colour temperature adjust setting which manufacturers leave preset at the bluest or coolest setting 10,000K+. Despite the fact that 6500K is considered daylight by industry standards on some televisions this is considered ‘warm.’
I am writing this blog in Autumn and daylight saving time is upon us. This means the evenings are darker earlier and there is an opportunity to get long evenings full of melatonin rather just the few hours we are asleep.
I would advise everyone to check there TV settings and adjust them to warm. Especially if you mainly watch TV after dark. For day time use TV Neutral may look better.
Staring at blue light after dark is not a good idea as it shifts your body clock, suppressing your melatonin rhythm. Melatonin the ancient molecule of darkness is vitally important for sleep, detoxing, hormone balancing, cancer prevention and reduction.
Melatonin is the most potent anti-oxidant known. It is both fat and water soluble and crosses the blood brain barrier.