‘Preview’ colorspace issue on OS Sequoia 15.7.7
Recently updated from Sequoia 15.6.1 to Sequoia 15.7.7. Not interested in upgrading to Tahoe at this time.
It seems as if the ProPhoto RGB color profile (specifically from what I noticed) in a working PSD file, got lost with this update in Preview. The thumbnails in the finder are the correct color, but as soon as you click ‘Quick Preview’, the colors are dull and muted. Likewise, if you go to the actual Preview app and browse files in that regard, the thumbnails are also dull/muted. Opening it in Preview does the same thing. A JPG in ProPhoto RGB color space doesnt seem to have issues in Preview.
Thumbnails in Finder displaying correct color
‘Quick Preview’ shows incorrect color
the file in Preview showing incorrect color
Tried a starting in safe mode, reinstallation of macOS Sequoia (it was updated to the 15.7.7 though so it did not solve anything), and tried adjusting the 'Color Profile' in ‘Displays’. I don’t use time machine for a previous backup of the OS. Spent alot of time with support, both in chat and on the phone. There is, at this time, no seemingly fix that they could help me with and I screen recorded the issue for them to escalate to their engineering team.
Posting as a warning to others who are still on Sequoia, seeing if anyone else is having this issue since upgrading, or of course looking for any suggestions that might solve such issue. Incredibly frustrating issue.
Posted Jun 11, 2026, 10:34 PM UTC