Jeffrey court riverwash is very similar to fireclay foggy morning. My local tile store had both on hand, and they were *very* close. Fireclay comes in a wide range of sizes. It's pricey, but absolutely gorgeous. I was also shopping for a tile like this. My short list included Senio Newport in Alabaster Craquele or Transparent White. And my very favorite was an italian tile I hadnt heard of before... I cant remeber the manuf name, and my quote just says Aspen Loft Bianco in White. It was a white tile, but with an interesting finish, almost metallic. Looked so nice with my marble-esque quartz counters. All of these were in the $11/sqft range. Here is the aspen loft bianco -

I feel for you! You've officially entered into the "making yourself crazy" territory, a place I have been many times. As cdisimone said, all of your colors are quite light, and very similar. At this point you'd probably be happy with any of them. If I were at the point you are now, I would commit to getting one gallon of the top choice color. Then pick one wall that's relatively easy to do, maybe in the living room since that's the space you care the most about, and do the wall completely, edge to edge, no previous color butting against it. You should also do the trim near it in the trim color you've chosen. This would give you a chance to make a decision based on the final look. It's a big enough area then that if it doesn't seem right, you may have an easier time figuring out why (i.e. too gray, too light, etc) and choose a better option. The good part is that your colors are so similar that it wouldn't really be a total waste and could serve as your first coat, even under a different top coat. Maybe could even use it for inside closets, that type of thing. After all, you're spending a lot of money on the samples, so either way it's not a cheap process. I truly think that it's going to look great when you're done.

I bought 5 samples today, one of them was a white for trim so just 4 for the walls. After considering what I already have, I decided to pick ones that had different undertones. As an example, I didn't get Horizon, b/c it's so close to Paper White, and i have that color in two rooms in my current house. It's pretty, but it definitely reads blue. I think this is partly due to my trim being Snowfall White, which is very close to Simply White. I think with a truer white it might appear a little more gray, although still cool. I ended up with Intense White, which is actually what I had wanted to use in one room instead of the Paper White. Also got Shoreline 1471, which reads a little more gray than Horizon, although I feel like the purple will come out I wanted to make sure. Also got Classic Gray ElleN, I'm going to give it one more shot. And Swiss Coffee, b/c my sample is so old for that one. I feel like with what I have and the new, I should definitely be able to come up with something. I buy these small flat canvases at Walmart in a 3 pack and they work amazing for paint samples. I have found that even foam board can curl pretty easily, and I'm not a fan of painting directly on the wall anymore, have screwed that up too many times. ElleN I agree Halo is very green, so I don't think it will do me any favors. And Gray Mist is not a very fun color, but I can't believe it looked so yellow on your walls. I think you're right, they might have mixed something wrong. Here's a couple of pics of our old kitchen with it. It was a great neutral with the floors, cabinets and countertops.

I would absolutely NOT use that dark gray floor. And you are doing things backward--select all your hard/permanent finishes and colors first, the wall paint color last. For the most timeless look, a medium brown wood, REAL wood, will go with anything, and will never be out of style. Gray floors have already had their moment. And laminate is an awful choice for a floor.