I paint mine white with veranda paint. There's also a kind of plastic paint for industrial use that you can use.
Assuming you have tile, this would be lovely https://www.hometalk.com/36896576/how-to-paint-tile-floors-with-a-stencil
I like this tutorial: https://realitydaydream.com/painting-linoleum-floors/
Check out this post. It's a fireplace, but same idea. https://jessicawellinginteriors.com/faux-cement-tile-fireplace/