Hisense U7N Mini-LED TV colors look wrong, washed out or tinted

The checks in more detail

Check the Color temperature setting, which should be Warm or Normal for a natural white; Cool gives a blue tint. Open the advanced picture settings and look at Color, Tint, Sharpness and Contrast, and reset the picture to defaults if the settings have drifted, since the TV stores separate settings for each input and each mode, and a change in one input does not carry to another. Source and signal matter. A console or streaming device set to limited RGB range makes the picture look washed out or crushed, so match the HDMI black level setting on the TV to the device, Auto in most cases.

HDR content looks dim or washed out if the TV is not in the right mode: check that the HDMI port is set to the enhanced or full-bandwidth format for HDR and that the source's HDR is on. Local dimming and brightness modes change contrast, so test the options. Ambient light sensing adapts the picture to the room, which can look inconsistent, so turn it off to test. The room's lighting changes how colors look, so view with a dim light. If one input has odd colors and others are fine, the cable or device is the cause, so try another HDMI cable. Update the TV's software, which sometimes corrects color handling.

If the colors look wrong in the menus as well as the picture, or show a stripe or a tint across the whole screen on every source, the panel or board may be faulty and Hisense support should check it. Photograph the screen with the TV's settings page visible when you change them, so that you can return to a setting you liked. Make one change at a time and view for a few minutes in the room's usual lighting, since the eye adjusts. If the picture is good in a dark room and poor in a bright one, a darker or brighter mode for each situation is the practical answer.