How To Turn Off Blue Light iPhone? 3 Quick Solutions

In the digital age, our screens are gateways to the world, but they come with a hidden cost: blue light exposure. This sneaky adversary can disrupt sleep and strain eyes, making it crucial to manage our exposure, especially at night. 

To reduce blue light on your iPhone, enable Night Shift: Go to Settings > Display & Brightness > Night Shift, where you can schedule it or adjust it manually for a warmer screen tone. Additionally, adjusting your device’s display settings can improve overall usability, similar to learning how to make a countdown your wallpaper on iPhone, which adds personalization and functionality to your device.

This article unveils how to harness iPhone features to mitigate the effects of blue light, ensuring your technology enhances rather than hampers your health and well-being. Ready to safeguard your sleep and eye health? Let’s explore the simple steps to turn off the blue light on your iPhone. 

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Features Of iPhone For Blue Light Reduction

iPhones have two primary features to combat blue light exposure: night shifts and color filters. Night Shift automatically adjusts the colors of your display to the warmer end of the spectrum—making it easier on your eyes during the evening hours. Color Filters can be customized further to reduce blue light, including the option to apply a red filter, which significantly reduces blue light emission.

These tools are designed to minimize eye strain and support better sleep patterns by decreasing the amount of blue light emitted by the screen.

What Is Blue Light And Its Effects?

Blue light is a visible light with shorter wavelengths and higher energy levels. Familiar sources include the sun, LED lighting, and digital screens on smartphones, tablets, and computers.

Exposure to blue light, especially at night, can disrupt the natural sleep cycle by inhibiting the production of melatonin, the hormone responsible for regulating sleep. This disruption can lead to difficulties falling asleep and poor sleep quality, affecting overall health over time. Additionally, prolonged exposure to blue light can cause digital eye strain, characterized by dry eyes, irritation, and difficulty focusing.

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What Are iPhone’s Built-In Solutions For Blue Light Reduction?

Night Shift can be scheduled to turn on automatically from sunset to sunrise or at specific times the user chooses. It adjusts the screen to emit warmer tones, less likely to interfere with sleep cycles.

Color Filters are For those needing more robust blue light reduction, Color Filters offer a customizable solution. Users can adjust the intensity and hue, including setting the filter to a red tone, effectively blocking out blue light.

  • Enabling Night Shift: Go to Settings > Display & Brightness > Night Shift. Schedule a time for the Night Shift to turn on automatically or manually, allowing it until the next day. For further customization of your iPhone, consider exploring how to add Greek alphabet to iPhone, enhancing your typing and communication capabilities. 
  • Using Color Filters For Stronger Blue Light Filter: Navigate to Settings > Accessibility > Display & Text Size > Color Filters. Turn on Color Filters and select Color Tint for the most significant reduction in blue light. For additional customization, see how you can adjust HDMI screen size on TV to optimize your viewing experience across devices.
  • Adjusting The Color Temperature For Optimal Comfort: Adjusting the color temperature involves balancing the warmth of the screen to reduce blue light while ensuring the display remains comfortable for reading and viewing. This balance helps mitigate eye strain without compromising the usability of the device.

How To Enable Night Shift And Color Filters?

Night Shift and Color Filters are two features on the iPhone designed to reduce blue light exposure. Night Shift adjusts the screen’s colors to a warmer hue, which can minimize eye strain and help maintain your natural sleep cycle by reducing blue light exposure at night. Color Filters offer more in-depth customization, allowing users to adjust the screen according to specific visual preferences, which can be particularly beneficial for reducing blue light further or for those with color vision deficiencies.

Here is how to enable Night Shift on iPhone:

  1. Open Settings: Start by tapping the Settings icon on your iPhone.
  2. Go To Display & Brightness: Find and select the “Display & Brightness” option.
  3. Select Night Shift: Tap on “Night Shift.”
  4. Schedule Or Manually Enable: You can set a schedule for the Night Shift to turn on automatically or manually enable it by tapping the “Manually Enable Until Tomorrow” option.
  5. Adjust Settings: Use the slider to adjust the color temperature to your preference.

How to use the color filters for a more robust blue light filter:

  1. Access Settings: Open the Settings app.
  2. Navigate To Accessibility: Select “Accessibility.”
  3. Open Display & Text Size: Choose “Display & Text Size.”
  4. Tap On Color Filters: Enable “Color Filters” by toggling the switch.
  5. Select Filter: Choose “Color Tint” as the filter option.
  6. Adjust Intensity And Hue: Use the sliders to adjust the intensity and hue for maximum blue light reduction.

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How To Adjust The Color Temperature For Optimal Comfort?

Adjusting the color temperature on your iPhone involves finding a balance that reduces blue light while ensuring the screen is comfortable for viewing. This balance is crucial for preventing eye strain during prolonged use, especially in low-light conditions. 

A warmer color temperature reduces blue light exposure, which is beneficial before bedtime to avoid disrupting your sleep cycle. Experiment with different settings in both night shifts and color filters to find what best suits your needs, considering the lighting conditions in your environment and personal sensitivity to blue light.

Activating the Red Color Filter can be particularly effective for the ultimate reduction of blue light.

  1. Open Settings: Launch the Settings app on your iPhone.
  2. Navigate To Accessibility: Tap on “Accessibility.”
  3. Go To Display & Text Size: Select “Display & Text Size.”
  4. Select Color Filters: Turn on “Color Filters” by toggling the switch.
  5. Choose Color Tint: Within the Color Filters menu, select “Color Tint.”
  6. Maximize Red Hue: Adjust the hue slider to the right to maximize the red filter.
  7. Adjust Intensity: Use the intensity slider to increase the red filter’s strength according to your preference.

This setting significantly diminishes blue light exposure, offering a comfortable viewing experience in dark environments and before sleep, thereby supporting better sleep quality.

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How To Create Shortcuts For Easy Toggling Between Color Modes?

To quickly switch between color modes on your iPhone, consider creating shortcuts. This automation can significantly enhance your device’s usability, similar to the convenience of how to connect iPhone to Sonos, which simplifies playing music throughout your home. This process involves using the Shortcuts app to automate the toggling between Night Shift, Color Filters, or the Red Color Filter for blue light reduction.

  1. Launch The Shortcuts App: Find and open the Shortcuts app on your iPhone.
  2. Create A New Shortcut: Tap the “+” to start a new shortcut.
  3. Add Action: Search for “Accessibility” actions and select the option to control Night Shift or Color Filters.
  4. Specify The Action: Choose to turn the Night Shift or Color Filters on or off.
  5. Name Your Shortcut: Give your shortcut a descriptive name for easy identification.
  6. Add To Home Screen: Add the shortcut to your home screen for quicker access.

By setting up these shortcuts, you can effortlessly switch your screen’s color settings to match your current needs, enhancing your device’s usability and eye comfort.

4 Additional Tips For Reducing Blue Light Exposure

Here are some additional tips for reducing blue light exposure:

  • Invest in a quality pair of blue light-blocking glasses. These glasses are specially coated to filter out blue light and can significantly reduce eye strain, especially during extended screen time.
  • Reduce room lighting to signal your body it’s time to wind down.
  • Opt for bulbs that emit warmer tones in the evening.
  • Avoid screens at least an hour before bedtime to reduce exposure to blue light.

See Also: How To Change Exposure On iPhone: Enhancing Your Photos


How do I reduce blue light exposure on my iPhone?

Use Night Shift to warm your screen's colors at night, reducing blue light. Enable it via Settings > Display & Brightness.

Can I customize the blue light filter on my iPhone?

Yes, through Color Filters under Settings > Accessibility > Display & Text Size, you can adjust the screen to minimize blue light further.

Can I create shortcuts for changing color modes on the iPhone?

You can create shortcuts with the Shortcuts app for toggling Night Shift or Color Filters for easy access.

What are additional methods to protect against blue light?

Besides iPhone settings, wearing blue light-blocking glasses and making environmental adjustments like dimming lights can help.

Does using a red color filter on an iPhone effectively reduce blue light?

Activating a Red Color Filter via the Color Filters setting can significantly reduce blue light, offering a comfortable viewing experience, especially before sleep.


Managing blue light exposure is essential for maintaining good sleep hygiene and reducing eye strain. By utilizing iPhone features like Night Shift and Color Filters, creating shortcuts for easy toggling, wearing blue light-blocking glasses, and making environmental adjustments, you can protect your eyes and improve your overall well-being. Embrace these tips to foster healthier habits around your device usage.

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