How do I convert this code so the functions can take a variable?

Question

I am trying to change the color of nav bar elements when the mouse goes over them.

This piece of code does that but for only the first button:

let navOne = document.getElementById("nav1");

function mouseOn() {
    nav1.style.color = "red";
}

function mouseOff() {
    nav1.style.color = "black";
}

navOne.addEventListener('mouseover', mouseOn);
navOne.addEventListener('mouseout', mouseOff);

I have been trying to convert the code so the functions work for multiple buttons, but cannot seem to get it to work. Here is the code so far:

let navOne = document.getElementById("nav1");

function mouseOn(navButton) {
    navButton.style.color = "red";
}

function mouseOff(navButton) {
    navButton.style.color = "black";
}

navOne.addEventListener('mouseover', mouseOn(navOne));
navOne.addEventListener('mouseout', mouseOff(navOne));

It has no errors, but does not cause any color change when I move my mouse button over the nav1 element.

Any help is greatly appreciated.