At first I thought I'd been sent the wrong colour wood but upon checking, it was exactly what I ordered.  The colour in the picture looks more like a dark Birch to me but Walnut it certainly is!  
A bit tricky to put together, even for a flat-pack queen like myself.  Just read the runners instructions carefully... they aren't as clear as they could be.
Now it's all together, we're perfectly happy with them, despite all our other wood-look furniture is a lot lighter :)