Hi

I'm looking to find out how to change the color of a chair my wife picked up. It already has a finish (poly) on it, so I don't think staining is an option.

I've attached a picture. We want to darken it to the color of the chair on the left.

All suggestions are welcome.

Thanks

Ed

the colored wax is a pretty good route for final tone adjustments,  however that much of a color shift is tough. If you just want to make it not stand out of the set it might do it. 

Id try tinting some shelllac, or  toners. Make sure to  do good surface prep

I just used glaze to color correct an old bench.  It worked very well. The top coat came out a little more glossy than I wanted but a little steel wool fixed that.

I'd go with Dana's suggestion of  dye.  TransTint Golden Brown looks pretty close to what you want, and you can make it as dark as you want by just adding more dye to the finish, a few drops at a time until it matches the color.   But being a chair, I'd use a urethane rather than shellac for durability.

My preference would be the original Enduro_Var Gloss which is a clear finish.  The new Enduro_Var Two has an amber tint.  Mix a small batch adding the dye until the shade is right. Gloss has no particle material to dull the shine so doesn't need to be stirred.   When cured, some steel wool will tone down the gloss to your preference.