Turn High Contrast On or Off in Windows 10
The high contrast mode is an Ease of Access features in Windows 10. The high contrast mode may make Windows screens easier to read for some users.
To turn on high contrast, open Windows Settings and go to the Ease of Access category, then to High contrast and turn high contrast on.
Here you can experiment with different high contrast color themes.
If you find that the high contrast settings don’t suit you, turn off the toggle switch.