MAPIWhy Do My TV Colors Look Wrong?
Color problems include strong red, blue, green, gray, or washed-out casts; missing colors; color bleeding; and inaccurate saturation while the picture remains visible.
If strange colors appear only on one source, inspect that device and HDMI path first. If the TV's own Picture Test is also tinted, missing colors, or otherwise abnormal, the TV itself is more likely involved.
Key takeaways
- Source-specific color errors often come from the connected device, broadcast, or HDMI path.
- A loose or damaged HDMI connection can cause missing or abnormal colors.
- Picture modes, color temperature, HDR, and related settings can change color presentation.
- Abnormal colors in the TV's internal Picture Test point more strongly to TV hardware.
What it actually means
A TV color problem occurs when the image geometry is present but hue, saturation, white balance, or individual color channels look clearly wrong.
The main explanation
LG's current support identifies unstable source signals and loose or damaged HDMI connections as possible causes of abnormal red/blue or missing-color pictures. LG also recommends Picture Test or screen self-diagnosis: a normal test image directs attention to the incoming source, while an abnormal test strengthens the case for TV-side service. Before repair, restore a standard picture mode because intentional color-temperature or HDR choices can also make an image look unusual.
Main causes and reasons
1. The external source is sending abnormal color
A set-top box, console, or streaming device can output an incorrect color range, HDR state, or corrupted signal.
How to recognize it
- Only one input looks wrong
- Built-in apps have normal color
- Changing source output settings helps
Why it matters: Source-specific problems should be isolated before the TV is serviced.
2. The HDMI cable or connection is poor
A loose or damaged HDMI path can cause missing colors, tint shifts, or color bleeding.
How to recognize it
- Colors change when the cable is reseated
- Another cable fixes the tint
- The problem is limited to one HDMI input
Why it matters: LG specifically recommends checking HDMI for abnormal color symptoms.
3. Picture mode or color settings are unusual
Color temperature, saturation, tint, white balance, and picture presets can produce a strong cast.
How to recognize it
- A standard picture mode looks normal
- The issue began after calibration changes
- A picture reset restores color
Why it matters: A deliberate setting change can look like a defect.
4. Broadcast or app content is the cause
Some channels, ads, videos, or creative grading can have an intentional color treatment or source defect.
How to recognize it
- Only one program looks wrong
- Menus and Picture Test look normal
- Other sources display correct colors
Why it matters: Content-specific color should not be confused with a TV-wide issue.
5. The TV panel or internal processing has a fault
Internal electronics can lose or distort color channels across every source.
How to recognize it
- Picture Test has the same tint
- All sources and menus are affected
- The problem persists after a picture reset
Why it matters: Picture Test abnormalities are stronger evidence of an internal fault.
How to identify your situation
The device, cable, or HDMI configuration is the leading suspect.
Next: Reseat the cable, test another cable, and review the source's HDR/color output.
A picture setting or calibration caused the appearance.
Next: Keep a suitable mode and adjust color settings carefully.
The content or broadcast is more likely.
Next: Compare other content before changing the TV.
The TV itself is more likely involved.
Next: Use manufacturer support after basic reset/update checks.
What you can do
- Compare built-in apps, live TV, and an HDMI source.
- Reseat and test the HDMI cable.
- Switch to a standard picture mode for comparison.
- Review HDR, color range, and output settings on the connected device.
- Run Picture Test or screen self-diagnosis.
- Update the TV and connected device.
- Use a picture reset before making advanced white-balance changes.
Common misconceptions
An HDMI problem or source signal can create the same color distortion.
Increasing saturation can hide one symptom while making the image less accurate overall.
Creative grading or a source-specific issue can affect only that content.
When it may be a bigger problem
Contact the manufacturer if abnormal colors appear in the TV's Picture Test, persist across all sources and cables, or are accompanied by fixed lines, panel damage, or large discolored regions.
Frequently asked questions
Can HDMI cause wrong TV colors?
Yes. LG specifically identifies loose or damaged HDMI connections as a possible cause of missing or abnormal colors.
Why does only one device have a color tint?
That pattern points more strongly to the external device, cable, or its HDR/color-output settings.
Should I reset TV picture settings?
A standard picture reset is a useful diagnostic step when custom color settings may be involved.
What if the Picture Test also looks wrong?
That suggests the problem is inside the TV rather than the incoming source.
Sources
- Troubleshooting Abnormal Picture Color: Screen Displayed in Blue or Red — LG SupportOfficial
- LG TV - Troubleshooting Poor HDMI Performance — LG SupportOfficial
- LG TV - How to Perform a Picture Test — LG SupportOfficial
Written by Mapiance Editorial Team
The Mapiance Editorial Team researches, writes, reviews, and maintains practical guides and explainers for MAPIANCE.
Reviewed by Mapiance Editorial Team
Published Sep 9, 2026 · Updated Sep 28, 2026 · Verified Sep 4, 2026