Using New Outlook on Windows for personal email, calendar, and contact management
Hello
I've been seeing other users reporting this same issue as well during the last few days.
Try this workaround.
Type "Color Management" in the search on the taskbar to launch this control panel item.
Once it opens, select your monitor > check Use my settings for this device > click Add > select sRGB IEC61966-2.1 if it is listed> set it as the Default Profile.
Restart the computer and see if it helps.