My Kitchen Looks Like Kermit

As you know, I have an olive-coloured kitchen. And I decided I’d give it an extra coat today. So I bought some matt Olive paint, which had an olive-coloured tin with an olive-coloured sample on it.
But was it olive-coloured? No. Hideous lime green. The colour of a deranged tree frog. I thought it would turn olivesque, but it didn’t. So I’ve now stopped half way and am having an aesthetic panic attack.