Use Quicktime 7 to view your footage. Quicktime X is terrible for color accuracy.
That said let me quote from a post on RedUser.net “There is no such thing as “accurate” in the world of Quicktime. There is only the values you’re getting passed to whatever delivery and display format you’re using. If your delivery format is HD video, you must look at it on an HD monitor through a proper video output card (Kona 3, Blackmagic, etc.). If your deliver format is the Web, you must look at it fully encoded to whatever codec you’re going to deliver it in, hopefully in a Web browser enabled player. The only thing that’s really accurate is a histogram, which will tell you without question where your digital image levels are. Video scopes will also do this, but only if you place them on the monitor path, external to the computer.”
https://www.reduser.net/forum/showthread.php?53148-Gamma-Shift-when-outputting-to-ProRes-(422)
Just do a Google search for this (or COW search) – https://bit.ly/11ynUTx
You’ll see this as a common issue that Apple has never really addressed well.
Ryan Holmes
http://www.ryanholmes.me
@CutColorPost