How to apply LUTs to your projects with Final Cut Pro X
Final Cut Pro X has a limited support for 3D LUTs out of the box.
For full LUTs functionality you should install a 3rd party plugin to enable the using of LUTs in a simple workflow.
Currently there are several 3rd party plugin that enable the use of LUTs inside Final Cut Pro X.
1. FCPX LUT Loader by Pixel Film Studios (Free)
2. LUTx by CoreMelt (Free)
3. mLUT by MotionVFX (Free)
4. Color finale by Color Grading Central (Standard - $99 | Pro $149)