DisplayTuneNight light and blue light
Every copy of Windows has Night light, but many people turn it off: it tints everything yellow, games included. Here is what it is for and how to make evenings more comfortable.
What blue light does
The blue part of the spectrum suppresses melatonin — the hormone that prepares your body for sleep — more than any other. So a bright cold screen late in the evening makes it harder to fall asleep. There is no convincing evidence that light from a normal monitor damages your eyes: the main benefit of a warm screen is for sleep and comfort.
Night light in Windows
- Settings → System → Display → Night light.
- Set the strength with the slider.
- Turn on the schedule: sunset to sunrise or your own hours.
How warm to go
| Time | Temperature | DisplayTune preset |
|---|---|---|
| Evening | 5000–5500 K | Warm evening |
| Late evening | 4000–4500 K | Less blue |
| Night work | warm + lower brightness | Night shift |
| Reading | soft contrast | Reading, Paper |
The problem with games
Night light applies to the whole screen — games turn yellow too, and blue and green objects get harder to see. DisplayTune solves this automatically: the evening profile runs on a schedule, and when a game starts its game profile with neutral white turns on. Quit the game and the evening profile comes back.
f.lux and other apps
f.lux shifts temperature gradually during the day and can exclude apps. Pick one: two apps changing color at once fight each other. Comparison — best monitor color software.
Reading, Warm evening, Less blue, Night shift and Paper presets, a time-of-day schedule and separate profiles for games. Works on NVIDIA, AMD and Intel. First day free.
Try it freePricing — from 200 RUBWant to see how it looks first? Load your own screenshot into the free Vibrance simulator →
Frequently asked questions
Is blue light from a monitor bad for your eyes?
There is no convincing evidence of eye damage. But bright cold light in the evening makes it harder to fall asleep, so a warmer screen at night is better.
Why won't Night light turn on?
Usually an outdated graphics driver or a conflict with another color app. Update the driver and keep only one app.
How do I stop night mode from affecting games?
Use profiles: the evening one on a schedule, the game one automatically when the game starts. DisplayTune does this by itself.