If you are using OSX and Chrome, in the recent Chrome update there seems to be a bug with video playback where blacks are significantly lifted and image washed out on Vimeo, and other platforms too.
Turning off hardware acceleration in Chrome settings 'fixes' this issue, until they figure it out and fix it properly.
I spent entire afternoon trying encoding and reuploading a video, tried 72 different settings, untill I figured out it was not Premiere or Vimeo encoder to blame.
This might be the problem only on systems with nVidia cards, or even more specific, but it might save someones afternoon to know this if this problem happens.
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