Pic? How are you using the room ?

Oh, that’s a good color.
What you do with it depend upon how fashion forward you want to be.
You could play it safe and stay in the greens and add in some brown and tan, like nature, and if you do it with varying and rich textured fabrics it will be interesting.
Or, with that olive you could do a plum. Or a mustard. Or a burnt orange/umber. Pick one of those colors with the olive, and then in your art and accessories you can do tints of the olive and that color. (That color plus white, and the olive plus white.)

Or you could add amethyst color in the pillows, stunning combination of tones.

A friend had a dark olive sofa and a light blue rug in her living room years ago - it was always a favorite room of mine and I swore that one day I would do those colors - and I haven't yet. But it was lovely.