Floor paint suggestion for hard wood floor?

[Startingagainandagain]

I want to paint some of my hard floors with dark grey paint.

Can anyone recommend a brand/type they used on wood floors that was durable and reasonably easy to clean?

We've used Little Greene floor paint (colour Lamp Black) in several areas including stairs and it's standing up well to everyday use in a rural location with a muddy dog.

@LibertyLily thank you! that's really helpful.

Little Greene floor paint is absolutely the best. I've used it in a couple of rooms on top of wooden floorboards. Excellent prep is compulsory Inc sanding, hole filling and knot priming (or full priming depending on surface quality). A few years on and the only (minor) damage is where I painted too much between floorboards that had movement, so cracked at that line. Colours are gorgeous with excellent coverage.