I prefer the Jasmine white as it is paler than the almond white, which just seems to me to be a darker shade of beige - although I can see that the bright white ceilings would have 'lifted' the darker beige more than the paler one.
However, what I or the tenants might prefer is not the point here is it. The point is that you asked for one thing and got a different product to the one you asked for. So I would speak to the painter - preferably face to face to see his reaction - but if he was hoping to dupe you why did he leave the pots there?
I would then leave it to him to suggest what he thinks is a fair recompense for this, what he would expect the professional to do if he himself was the client. I think the expectation could rightly be that he buys and applies the correct colour paint. However, as the shade is not too different from the one you chose, and as he didn't appear to cover the floor with a protective cloth when applying the paint the first time, I don't think I would want to trust him with the job of rectifying the problem.
So, all things considered, I think that asking for a partial refund or getting him to agree to your bill being reduced, is probably the best outcome here. Personally I would ask for a breakdown in the cost of the job (both the materials used, and the cost of the paint - ask to see the receipt). I think it would be fair to take the cost of the paint off the final bill, and a little extra for the mess he left behind. If you have paid employment yourself you could consider the extra charge to be 3 hours worth of your paid employment. However, if as I suspect, you are on quite a high salary, that could leave him owing you 'a lot' of money. So maybe instead you could be generous, and take off your bill the additional amount of 3 hours of his labour, on top of the cost of the paint.
If he doesn't offer, or accept any agreeable terms, then maybe you shouldn't try pursuing it, instead just leave him a bad review. If I was employed in a trade like this, I think that I would prefer to 'take the hit' rather than risk getting a damning review.