# Fix HDR Video Colours — Fix washed out iPhone HDR videos on Mac

Make iPhone HDR and Dolby Vision videos look right everywhere: converts them to standard colour (SDR). Part of OneMacTools, 148 private tools in one native Mac app (macOS 26 or later); category: Video. Runs on your Mac; nothing is uploaded.

iPhones record HDR video (Dolby Vision or HLG) that looks washed out, grey or blown out once it's uploaded, sent to a Windows PC or opened on a screen without HDR. This makes a standard-colour (SDR, BT.709) copy with Apple's own tone mapping, so it looks as you saw it on the phone. Videos already in standard colour are skipped, and no extra download is needed.

Page: https://www.onemactools.com/tools/fix-hdr-video-colours · Download: https://www.onemactools.com/download · Pricing: https://www.onemactools.com/pricing

## How to use it
1. **Drop your videos.** iPhone videos recorded in HDR (Dolby Vision or HLG), or any HDR clip.
2. **Choose the format.** H.264 plays everywhere; HEVC makes smaller files for newer devices.
3. **Click Fix Colours.** Each video gets a standard-colour copy named with SDR at the end.
4. **Share the SDR copy.** Upload or send it; it looks the same on every screen.

## Options
- **Save as:** H.264 MP4 (plays everywhere, including older Windows PCs and websites) or HEVC MP4 (about half the size, for recent phones and Macs).

## Tips
- Videos that are already in standard colour are skipped, so you can drop a whole folder.
- Keep the original HDR file: it looks better on HDR screens like recent iPhones and MacBook Pros.
- To stop recording HDR in the first place, turn off Settings › Camera › Record Video › HDR Video on your iPhone.
- If the copy is too big to send, run Compress Video on it afterwards.

## Questions
**Why do my iPhone videos look washed out when I upload them?**
iPhones record HDR video by default. Many sites, apps and screens don't show HDR, so the video looks grey, faded or too bright. Converting it to standard colour (SDR) fixes that.

**How do I convert Dolby Vision to SDR on a Mac?**
Drop the video into Fix HDR Video Colours and click Fix Colours. You get an SDR MP4 that looks right everywhere.

**Will it look worse on my iPhone?**
A little less bright on HDR screens, since highlights are brought into standard range. Keep the original for watching on HDR screens.

**How do I know if a video is HDR?**
On iPhone, HDR videos show an HDR badge in Photos. Fix HDR Video Colours also tells you when a video is already in standard colour.

**Is the video quality reduced?**
It's re-encoded at high quality. Choose H.264 for the widest support or HEVC for smaller files.

**Is my video uploaded?**
No. It's converted on your Mac.