How to save a local Color3Value to a datastore?

I'm making a game and I am adding a system to change a color3value and to read it. I wanted to save it to a datastore but its a server script and I'm pretty sure you cant save with a local script. a server script can only see the server-side which doesn't change because the system that changes the color3value is a local script so it doesn't accidentally load someone else data. I want to save the color3value into a data store. I want to know how to change a local value that a local script can handle to a server value that a datastore and server script can handle. I hope everything makes sense.