If it were a print or a complementing color, it would be fine, but the off-shade would bother me. Like you're trying to match it but didn't quite succeed. Sorry! That is a really good deal.
What the PPs said. I wouldn't get one a similar color bc it wouldn't be the same and that would bother me. But if it had a pattern or a different color so that it would compliment the room without looking like a failed attempt at matching, it would be better.
It would bother me because they are so close, I would be fine if it were a totally different color that went with the couch, rather than an almost match like that.