I would guess that its H. attenuata. But what about those crazy colors, I've never seen a Haw that color.

We need a profile shot so we can see what the underside of the leaves look like.

There is a chance those leaves are painted, at least their tips, especially if they came w/ that 1/2 painted pot. You'll have to wait & see.

the colours have been caused by extreme light exposure, I have seen haworthia attenuata go that colour in full sun, all day, with daily watering. Under more normal conditions, it will go green

Haworthiopsis fasciata 'Browniana'