OpenFX version of the plugin is designed to work with Blackmagic Design DaVinci Resolve but will also work in other OpenFX hosts such as Assimilate SCRATCH, NuKe, Sony Vegas Pro.

To access the plugin in DaVinci Resolve open Library in the OpenFX section in the top right side of the main screen:

Then scroll down the list and drag False Color plugin from the Scopes category to the node.