You might do better posting this on the Home Decorating forum.

I actually just painted samples of Edgecomb Gray on several walls of our new build. The rooms all had east/southern light, and it's great. No green. No purple. A very nice blend of beige and gray. It did seem a bit more gray out of direct light, which I actually like. Sorry, I did not try it on a northern lit room, so I can't speak to that. I've been swimming in paint colors lately to figure out all the rooms of the house, and I will say, this color needs to be sampled on the wall. In our current home, it looked more like a shade of white. But at the new build, it's a warm griege - and just what we were looking for! Good luck!

I'm currently doing my whole house in Edgecomb gray. I can't remember what Repose Gray looks like, but EG has lots of warmth/beige in it so it's not too cool. I liked that and thought it would go nicely with a light tan/white couch. I was inspired by Young House Love blog, which did much of their house in that. But of course, color translates different in different homes/lights.

Neutral colors are a mix of different colors, so depending on what you have next to your neutral the neutral color appears to pink or blue or green or yellow. It really isn't a foreign concept to most women, we just haven't thought about paint color the same way we look at makeup and clothing. My sister has an olive skin tone and medium brown hair, I have an ivory skin tone and dark hair and my sister in law has blond hair, blue eyes and a fair golden skin tone. We don't look good in the same colors. Your home is full of colors. What looks good next to my purples and purple reds and smokey teals won't look good next to my sister's greens and golds and orange reds or next to my sister in law's cornflower blue, peach and butter yellows. We each had to pick neutrals that went with the decor and flooring and woods that fill our home. Can you imagine my purples, reds and teals with a moss green neutral a yellow tan or is it better with a taupe that has slightly purple undertones? Below is a demonstration of how neutrals can look very different based on the colors around them. Both sections have one color in the center of each block. It is the same color in each block all the way across the page, yet the color appears more pink or green or yellow or blue depending on the color next to it. If edgecomb gray is picking up purple you probably have yellow undertones around it. Edgecomb gray is a pretty solid neutral with just a hair more pink and less green than revere pewter. Baby Fawn or tapestry beige may work nicely - just a bit less pink/purple undertones and a hair more yellow. I would recommend that you pick your flooring before picking the paint color because it could also change the perceived wall color. If you can gather together samples of the colors that are staying and lay them out on a white sheet in natural daylight (I like to do this outside on a clear day) and look at a bunch of neutral swatches next to the colors you will start seeing the patterns. More yellow looks better or grayer looks better a little more green looks better.