I've dug around numerous forums and have had no success finding a solution to my issue - .mp4 files color corrected in Premiere and exported in H.264 end up being unacceptably dark, the colors crushed. There are a lot of conversations from 3 years ago about exports being lighter, or solutions offered on a Windows platform (I use a Mac), lots of complaining about Quicktime, but nary a fix for what ails me.
Top left = Premiere program monitor; Top right = Quicktime playing the .mp4; Bottom center = Youtube (obviously).
In reading forums, I wonder the issue is that I'm editing in 0-255 rgb range, but it's exporting in the 16-235 range. Or vice versa? I'm fairly new at this and while I'm pretty confident in everything else regarding video production, I can't figure out what's going on behind-the-scenes in Premiere that would cause this.
I have found each video example to be unchanged from Mac to PC, on Safari, Chrome and IE11, exported for Vimeo or Youtube, on the MacBook Pro screen to two differing-model dell monitors.
I work on a 2013 MacBook Pro, with an Nvidia GeForce GT 650M. The drivers are up to date. There are no meaningful graphics card settings on OSX.
At first I thought that Quicktime as a player doesn't have anything to do with it since it shows up the same on Youtube. It must be in the file. Then I imported the .mp4 back into the project and the color/white balance looked fine. So now I have no idea.
Thanks in advance.