I think sage works well with a more traditional or transitional style. Search the box above under Photos for sage sofa to see some inspirational pix. Long term, you have to be happy with it. Consider what colors you could change out over time that would complement the sofa.

I think sage can have a fresh look and neutral with the right accents... A throw or pillows can do a lot..search Houzz pics for sage sofa and see how the designers style it...I would use cream or navy or pops or red or orange,