You may never get the colour back into that leather properly.
When using an ink remover on leather, you should have used the remover in a non-conspicuous spot (like under the bottom of the couch or chair) to see what effect the remover would have had on the leather.
If you haven't already, contact La-Z-Boy and see if they offer to help or get you in contact with someone that can, and know what they are doing.

Good luck.

Permanent markers are now made in an amazing variety of colors....I have used them on all sorts of things to "restore" color. If you can find a color that's close....go for it.
Linda C

Actually lazboy had referred me to a leather company and after giving them the cover # they can mix some color up. I don't know what it would cost, but I put extra leather conditioner in that area (which significantly darkened the leather--gesh) and now am wiping it with rubbing alcohol to remove the build up and hopefully fill in that lightened area with natural color; so far so good, but I'd be more careful in the future. It's surprisingly easy to ruin a nice piece of leather furniture. I'll buy a big thing of lexol next and condtion the whole thing. Thanks!

You can't

Hire a reputable leather repair guy. I got a piece of duct tape stuck to my expensive Thomasville sectional. I was sick. This guy came with a his sprayer and tools and within 40 min, you could not see where I had done any damage. It was worth every penny to me. He's on my contacts list forever.