TV and smart home technician helping fix HDR color issues

Steve H.

Expert ★★★★★ 27,853 satisfied customers

Specialities: Smart TVs & home hubs, HDR/Dolby Vision, HDMI/ARC/eARC, color space & gamma, Apple TV/Fire TV/Roku/Google TV

Smart Home Hub HDR colors look wrong — TV, hub, HDMI and picture mode issues

Technician avatar Technician
Hey! We’ll track down why your Smart Home Hub shows wrong colors in HDR and get movies looking normal again. Quick questions so we don’t guess:
• Which hub/box are you using: Apple TV 4K, Fire TV Stick/Cube, Roku Ultra, Google TV/Chromecast, Nvidia Shield or something else?
• TV brand/model (Samsung, LG, Sony, Hisense, TCL, etc.) and whether it supports HDR10, HDR10+, HLG or Dolby Vision?
• What exactly looks wrong in HDR: washed out / grey, too dark, heavy yellow/green tint, skin tones too red, or neon/oversaturated colors?
• Does it only happen with HDR content from the hub, while built-in TV apps (Netflix/Disney+/Prime) look fine?
• Any recent firmware update on the TV, hub, AVR or receiver, or did you change HDMI cables/ports?
The more detail we have, the easier it is to fix a Smart Hub HDR color problem instead of just randomly changing picture modes.
Customer
I’m using an Apple TV 4K and a Fire TV Stick 4K on a Samsung QLED. SDR looks fine but when HDR kicks in the picture is weird. Sometimes HDR looks washed out and grey, other times it’s way too dark with crushed blacks. Native Samsung TV apps look normal in HDR, so it seems like the Smart Home Hub HDR colors are wrong, not the TV.
Technician avatar Technician
Got it — classic case of a streaming hub sending HDR in the wrong format while the TV’s own apps are fine.
A few things typically cause wrong colors in HDR on a Smart Home Hub:
• The hub is forced to output 4K HDR all the time, even for SDR → the TV applies HDR tone mapping to SDR and everything looks flat or oddly dark.
• Color space or HDMI range mismatch (RGB vs YCbCr, full vs limited) between hub and TV → washed-out or crushed blacks.
• Different picture modes for the HDMI input vs the internal apps → your HDMI input might be stuck on Vivid, Game, PC or strange custom settings.
• A firmware update changed how your TV handles HDR10 / HDR10+ / Dolby Vision on HDMI inputs but not on internal apps.

We’ll:
1) Put the hub into a 4K SDR base format so HDR is only used when the movie is actually HDR.
2) Match color space and black level between hub and TV.
3) Clean up the HDR picture presets on the HDMI input so colors look like the built-in apps.
If needed, we’ll also rule out faulty HDMI ports or cables.
Customer
On the Apple TV it was set to 4K HDR by default. Fire TV also says “Always HDR”. When I play HDR movies from those devices, dark scenes are muddy and faces sometimes look orange. On YouTube HDR it’s the opposite, everything is overly bright and washed out. How do I make HDR from the Smart Hub match what I see from the TV’s own apps?
Technician avatar Technician
Perfect, that explains a lot — HDR forced on all the time is a very common reason for Smart Hub HDR looking wrong.
Step 1 — Use 4K SDR as the default output
On Apple TV / Fire TV / Roku / Google TV (exact menu names differ):
1) Go to Settings → Video/Display.
2) Set Format to 4K SDR (not HDR).
3) Enable options like Match Dynamic Range and Match Frame Rate (Apple TV) or “Adaptive HDR” / “Use HDR only when supported” on other hubs.
This makes the hub send SDR for SDR and true HDR10/Dolby Vision only for HDR movies, which avoids applying HDR tone mapping to everything.

Step 2 — Use a sane picture mode on the HDMI input
On the Samsung TV’s HDMI input used by the hub:
• Choose a neutral picture mode like Movie / Filmmaker Mode / Standard, not Vivid or Dynamic.
• Turn off extreme processing: “Dynamic Contrast”, “Black Tone”, experimental HDR+ modes, etc. for now.
After this, SDR from the Smart Home Hub should look very close to SDR from built-in apps. Then we’ll fine-tune HDR itself.
Customer
I switched both devices to 4K SDR and enabled the “match” options. SDR looks much better now and closer to the TV apps. But when HDR triggers, blacks are still a bit grey and some scenes look like there’s a light haze over them. Could this be the HDMI color space or black level thing you mentioned?
Technician avatar Technician
Exactly — that “haze” and grey blacks in HDR usually mean the hub and TV disagree about HDMI range or color space.
Step 3 — Align color space and black level
On the Smart Home Hub / streaming box:
1) Under Advanced video or Color settings, set output to YCbCr (YUV) 4:2:0 or 4:2:2 instead of RGB, if available.
2) Set HDMI range / black level to Limited or “Video” (not Full/PC) unless your TV is definitely set to Full.

On the TV’s HDMI input used by the hub:
• Look for HDMI Black Level / Range and set it to Low / Limited / Normal or “Auto (recommended)”.
• Avoid labelling that HDMI input as “PC”, because PC mode often forces Full RGB and can break HDR tone mapping.

When the Smart Home Hub and TV both use video range (16–235), HDR usually stops looking washed out and shadow detail comes back. We’ll test with one HDR movie after you change these.
Customer
I changed Apple TV to YCbCr and set the TV’s black level to Low. Blacks look better now and HDR isn’t as grey. But Disney+ and Netflix from the hub still look slightly different compared to the same apps on the TV — skin tones are a bit too warm and some highlights still blow out. Is that just normal or can I tune HDR more?
Technician avatar Technician
Good progress — now we’re down to HDR tone mapping and picture mode differences between the HDMI input and the internal apps.
Step 4 — Use a dedicated HDR picture preset for the hub
With HDR content playing from the Smart Home Hub:
• Open the TV’s picture settings (you should see “HDR” somewhere in the info banner).
• Pick a calibrated mode like Movie / Filmmaker Mode / Cinema for HDR on that HDMI input.
• Set Color Temperature to Warm1 or Warm2; avoid Cool/Blue tints that make skin tones strange.
• Turn down or off extra processing (“Dynamic Tone Mapping”, “Live Color”, “HDR+ Effect”) until the image stops clipping highlights.

On some TVs there’s an HDR tone mapping option (Standard, Bright, HGiG, etc.). Try Standard or HGiG first — “Vivid HDR” or “Dynamic HDR” often makes HDR colors look oversaturated or fake.
Once the HDMI HDR preset is sane, the difference between hub apps and internal apps should be small and easy to live with.
Customer
That helped a lot. HDR movies from the hub now look close to the TV’s apps. I also play on a PS5 sometimes. When I plug the console directly into the TV, HDR looks fine, but if I pass it through my Smart Hub/AVR first the colors get weird again. Is this the same type of HDR color space problem?
Technician avatar Technician
Yep, same family of issues — when HDR looks right direct to the TV but wrong through a Smart Hub or AVR, it’s usually the middle device.
Step 5 — Check HDMI ports, cables and enhanced modes
• Make sure you’re using a high-quality High Speed / Ultra High Speed HDMI cable for 4K HDR between hub/AVR and TV.
• On the TV, enable the port’s “HDMI UHD Color” / “Enhanced Format” / “4K HDR” option for the HDMI input where the hub/AVR is connected.
• In the hub/AVR video settings, set output to 4K, YCbCr, 10-bit if available, not 8-bit SDR.

Test again with a known HDR title (e.g. a Netflix or Disney+ show you know well). If HDR from PS5 and built-in apps look good but HDR via the Smart Home Hub is still off, we’re probably dealing with a firmware quirk in the hub — which we can often work around with specific settings or, occasionally, a firmware update.
Customer
After enabling the TV’s “HDMI UHD Color” and changing the AVR to YCbCr 10-bit, the PS5 looks normal in HDR again. The Apple TV and Fire TV also look much better. Is there anything else I can do so I don’t have to redo all these HDR color settings every time something updates?
Technician avatar Technician
Great question. A few habits will keep Smart Home Hub HDR colors from going crazy after every update.
Preventive setup for HDR on TV + hub
• Keep one HDMI input reserved as your “4K HDR hub input” and avoid changing its label or mode (don’t flip it between PC/Game/Blu-ray constantly).
• Leave the hub on 4K SDR with Match Dynamic Range instead of forcing HDR 24/7 — this prevents SDR from being tone-mapped like HDR.
• Write down or screenshot key settings (TV picture mode, black level, HDMI range, hub color format) in case a factory reset or firmware update resets them.
• Update firmware on the TV, Smart Hub and AVR, but avoid beta firmware and check notes for known HDR color issues before updating on day one.
• If a particular update is reported to cause washed out HDR or wrong colors on your hub, turn off auto-update temporarily until a fixed version is released.
These small steps make HDR much less of a guessing game.
Customer
One more thing: if at some point HDR breaks completely and colors are way off again, what’s the best order to reset things? I don’t want to factory-reset the whole Samsung TV if I can just reset the Smart Hub HDR settings.
Technician avatar Technician
Good call — full factory resets are a last resort. Here’s a safe order when Smart Home Hub HDR colors go wrong again:
1) Power-cycle the chain: turn TV, hub and AVR off, unplug them for 30 seconds, then plug the TV in first, then the hub/AVR.
2) On the hub, use “Reset video settings” or “Restore default display settings” without wiping apps/logins.
3) On the TV, use “Reset picture settings” for that HDMI input only (many sets let you reset picture per input or per mode).
4) Re-apply the basics: 4K SDR base format, Match Dynamic Range, YCbCr, Limited range, Movie/Filmmaker HDR mode.
5) Only if everything is still broken do a full factory reset of the hub, and as an absolute last step, the TV.

We can walk through this exact reset order for your TV/hub combo live in chat if you’d like, so you don’t lose more settings than necessary.
Customer
After changing the hub to 4K SDR, matching dynamic range, fixing HDMI range and using Movie mode for HDR, everything looks good now. HDR from the Smart Home Hub finally matches the TV apps and games again. Thanks for helping fix the wrong colors in HDR!
Technician avatar Technician
Summary: when a Smart Home Hub shows wrong colors in HDR, start by using 4K SDR as the base output with “match dynamic range”, then align color space and HDMI range with the TV and pick a neutral HDR picture mode on that HDMI input. Enable enhanced 4K/HDR on the TV’s HDMI port and check cables if necessary. Only move to resets if simple changes don’t fix it. Not sure which option in your TV or hub menu is the right one? Open the chat and an expert will walk you through the exact settings step by step.

Quick answer: the accepted fix

Accepted fix when a Smart Home Hub HDR picture has wrong colors: set the hub’s default output to 4K SDR, enable “Match Dynamic Range” or equivalent, then set color output to YCbCr video range and match the TV’s HDMI black level (Limited/Low). On the TV’s HDMI input, use a neutral Movie/Filmmaker HDR picture mode and turn on the port’s “HDMI UHD Color/Enhanced” option. This usually removes washed-out HDR, restores correct contrast and makes hub HDR match the TV’s internal apps.

Why Smart Home Hub HDR colors look washed out or too dark

Most Smart Home Hub wrong colors in HDR come down to three things: the hub forcing HDR on everything, mismatched color space / HDMI range, or different picture modes on HDMI vs built-in apps. When a hub is locked to 4K HDR output, the TV applies HDR tone mapping to SDR shows, producing flat, grey or overly dark images. If the hub uses Full RGB while the TV expects Limited YCbCr (or vice versa), blacks either wash out to grey or crush to pure black with no shadow detail. Finally, HDR picture presets often differ between HDMI inputs and internal apps, so the same movie can look natural in Netflix on the TV but over-saturated or tinted when played via Apple TV, Fire TV or Roku.

How to test if your Smart Hub HDR colors are really fixed

After adjusting settings, pick a familiar HDR title (for example a popular Netflix or Disney+ show) and play it both from the TV’s internal app and from the Smart Home Hub on the HDMI input. Compare skin tones, shadow detail and highlight brightness. If faces look natural, blacks aren’t grey and bright lights don’t blow out, your HDR tone mapping and color space are probably correct. If only the HDMI source looks wrong while built-in apps look fine, re-check the hub’s output format (4K SDR + match range) and the TV’s HDMI black level, and make sure the HDMI input has an appropriate Movie/Filmmaker HDR preset instead of Vivid or PC mode.

Smart Home Hub HDR wrong colors — quick troubleshooting tips

Most HDR color issues are fixed by aligning hub output with the TV’s HDMI HDR settings.

Quick path: set the Smart Home Hub or streaming box to 4K SDR as its base format, turn on options like Match Dynamic Range, and use YCbCr limited range instead of Full RGB for video. On the TV, enable the HDMI port’s 4K/HDR enhanced mode, choose a neutral HDR picture mode (Movie/Filmmaker/Cinema), and set HDMI black level to Low/Limited or Auto. If HDR still looks wrong only from the hub, try another HDMI port or cable and reset video settings on the hub before considering a full factory reset of the TV or receiver.

Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your TV brand, Smart Home Hub model and firmware version, please consult a verified expert on Whizz-Tech before making decisions.

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FAQ

Why do HDR colors look washed out or grey from my Smart Home Hub?

Usually because the hub is forcing HDR output for everything, or because the HDMI range/color space between hub and TV doesn’t match. If the hub uses Full RGB and the TV expects Limited YCbCr (or vice versa), blacks turn grey and contrast collapses. Switching the hub to 4K SDR with match-range options and using YCbCr Limited often restores proper HDR contrast.

Should my Smart Home Hub use RGB or YCbCr for HDR?

For most TVs, YCbCr (YUV) Limited range is the safest choice for HDR video. RGB Full is mainly for monitors/PC mode and easily causes wrong blacks and colors if the TV is set to video range. Matching YCbCr Limited on the hub with Low/Limited HDMI black level on the TV avoids washed-out HDR and keeps color grading closer to the creator’s intent.

Why does HDR from my Smart Hub look different than HDR from TV apps?

TVs often use separate picture modes and tone mapping for HDMI inputs vs built-in apps. Your HDMI input may be stuck on Vivid, Game or PC mode while internal apps use Movie or Cinema. Aligning the input’s HDR picture preset with the TV’s internal HDR mode and matching HDMI range/color space usually makes Smart Hub HDR and TV app HDR look very similar.

When should I reset Smart Hub or TV video settings to fix HDR colors?

If HDR colors remain obviously wrong after you match SDR/HDR formats, HDMI range and picture mode, it’s reasonable to reset video settings on the Smart Home Hub first, then reset picture settings for that specific HDMI input on the TV. Leave full factory resets of the TV or hub as a last resort when everything else fails.

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