New answers tagged color-correction
I had a similar problem, but I was getting washed out colors from H264 renders in Premiere CC 2015 on Windows. I believe it wasn't a playback issue because the rendered footage looked different when brought back into Premiere. I copied the files to a Mac and was able to render fine. My PC had an nVidia car
I second using Resolve, but there are a few "hidden" color tools you can access if you have Motion, or know someone who does. Motion allows you to publish effects for use in FCPX and can be transferred from one machine to another. See this post from creativecow for a downloadable zip which includes Brightness, Channel Mixer, Color Balance, Colorize, ...
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