Colour Change on Export Premiere Pro

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Hey, 

I need some help!

I am having significant issues with trying to export a project in Premiere Pro. 

I have done everything, tried to apply the LUT - QT Gamma Compensation.cube that Adobe released. And still, my project exported desaturated and washed out. 

How do I put it through media encoder if that will help? 

I am not sure what to do? 

I have a project due that color is crucial to, and the exports ruin it. 

Is there anything more I can do? Am I doing something wrong?