Redshift is a Linux application similar to Windows' F.lux, which gives the screen a red tinge automatically at night. Supposedly, it reduces eye strain and helps prevent sleep problems.

Is there any way I can adjust my screen's color temperature to create the same effect on Android?


5 Answers 5


There are a fair few blue light filter apps on the Play Store that may suit your needs. The exact features will vary, but they all fit the general scheme of allowing you to adjust the color temperature of your screen.

Additionally, if your device is rooted, you can actually use f.lux nowadays.


Well I know for a fact that there is Cyanogenmod ROM which has "filter options" one of them being only turn on red, I know its not automatic, but there is widgets for the home screen. I'm pretty sure there is a way to do it by app but it would require root access.

  • 1
    Tasker or Locale could probably turn it on, but I'm guessing a gradual change wouldn't be possible. Commented Feb 18, 2011 at 17:56
  • unfotunatly when selected it completely turns off all other colors
    – Gunslinger
    Commented Feb 18, 2011 at 23:23
  • Sorry, but I could not find that setting (CYM11 here). Where's that? Commented Oct 2, 2014 at 15:18
  • Settings-> Display & Lights-> (go to the bottom) Color calibration, at least that's what its like on my nexus 5
    – Gunslinger
    Commented Nov 5, 2014 at 22:49

Twilight works well, although it's just a screen filter, it's automated and very similar to f.lux if you move the color temp to the right more

I love it although it does look terrible, it's all we have, and I am not going to root my phone just to have a true color temp change that's insane, plus it voids my warranty which I need to have and rooting is insanely difficult, DO NOT tell me it's easy i've read the instructions for it -- it's NOT EASY


Current builds of CyanogenMod have a feature called LiveDisplay. It's very similar to f.lux, automatic changes in the evening and all. It actually changes the color temperature of the screen; it's not an overlay.

It can be turned on from Settings > Display & lights > LiveDisplay > Display mode > automatic.


Twilight (free)

Twilight automatically makes the screen redder at night, with options for color temperature, intensity, and brightness. It has a nice Material design too.

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