Diagnosis
The Color Temperature or HDR setting is incorrectly configured for your viewing environment. The default 'Standard' picture mode may not be accurate.
How to Fix It
Adjust the Color Temperature setting. From the home screen, go to Settings > Display & Sound > Picture > Color Temperature. Cycle through the options (Warm, Standard, Cool, User) while viewing a white screen. 'Cool' often corrects a yellow tint.
If That Didn't Work
Disable HDR. Go to Settings > Display & Sound > Picture > HDR Mode and set it to OFF. If the source content is not native HDR, forcing HDR can cause severe color inaccuracies and tinting.
Heads Up
Projecting onto a colored wall (cream, beige) will inherently shift the color balance. For accurate colors, the image must be projected onto a white or neutral gray surface.