LG G5 OLED evo TV colors look wrong, washed out or tinted

The checks in more detail

In the advanced settings, the Color Temperature should be Warm 2 or Warm 1 for a natural white, since Cool gives a blue tint, and Color, Tint, and Sharpness should sit near the defaults. Reset the picture mode to defaults if the settings have drifted: the TV stores separate settings for each input and mode, so a change in one place does not appear in another. Source and signal matter. For HDR content, the TV uses a separate set of picture settings, and Dolby Vision uses its own; check that the source's HDR is enabled and that the HDMI port has Deep Color enabled, in Settings, General, Devices, HDMI Settings, HDMI Ultra HD Deep Color, for 4K HDR sources.

A console or box set to limited range makes blacks look gray, so match the black level to the source: Auto in most cases. Energy-saving features that dim the screen, such as Energy Saving Step and the ambient light sensor, change brightness and color, so turn them off to test. OLED panels may show uneven color at very dark levels, and the TV shows a slight warm cast at the start, normal for warm-up. If one input has odd color, the cable or device is the cause. Update webOS.

If the colors are wrong in the menus as well, or a stripe or tint shows on every source, contact LG, since a panel issue may be covered by the warranty. Compare against a source you know. Play the same film from a different input, or from the TV's built-in player, and check whether the colors match. If one source differs a lot, the fault lies in that source's settings. Take a photo of the screen and of the same scene on your phone to compare, remembering that cameras alter color. Calibrating with a reviewer's published settings is a reasonable shortcut for the G5.