Never select colors from a computer screen.

It doesn't matter what that color is, even if someone could tell you definitively. It will appear differently in your area with your light and whatever material you are using on the exterior. Are you painting it or is it a standard color? Is it wood or composite or vinyl siding? Whatever it is, see if you can view the color on an existing home in your area--ask your builder for references.

Determine the color options you have for the components you have limitations on. Like the shingles. Your other colors need to compliment them. What is your siding material. If its cement board, there are standard factory colors although you can choose a custom color. Get samples of these products to take to your site to see together. Paint a large posterboard with your exterior paint color or colors. Do this work because you'll live with the product going forward.

Sherwin Williams and Behr make a color called simply "Anonymous".

If you are referring to the SW 7046 color, the best way to see it is to order a self-adhesive sheet from Samplize. You can also get a chip sample from Lowes:

The SW color is more brown with a green undertone and the Behr color is more gray. The SW green undertone is very subtle and prevents it from being too muddy. It's a subdued color that can help to integrate multiple overlapping gables with the overall design when a brighter color might be chaotic.

As others have said, the color may or may not look different depending on what the light is where you are and what surrounds your house (trees, dirt, sky, other houses).

Also where you are located will make a difference. For example, the sun in Fl is warmer than sunlight in New England and that affects how the color looks.

The only way to truly see if the color is correct for you is to paint a large swatch on the same material you have and put it against the house on all sides.

I agree with others points. If you like this image, you may like Sherwin Williams Gauntlet Gray. It is a beautiful color imo. A big painted sample held up where your project actually is will be important. Kylie M Interiors website has a great review of this color. For trim color if you like white, she recommends Sherwin Williams Pure White with Gauntlet Gray. Good luck!!