Based on measuring a sample of Revere Pewter and formal colorimetric standards, it belongs to the yellow hue family. Here's a complete Colorography of the color. This is an objective point of view based on the color's spectral curve or "fingerprint" measured in a controlled environment - usually lit with a daylight light source called D65. Which is very different from the very murky, slippery slope of undertones which are painfully subjective and totally determined by individual evaluation. In other words, when it comes to undertone, someone's making their best guess about what they see as far as a color's inherent qualities using random lighting conditions. They could be shuffling paint chips at their kitchen table, in the front seat of their car, out in the garage, standing in their half-built castle. You really have no way of knowing.

First off, I can see you have so many colors right next to each other for swatching, and when I see a client do that I know I have lost them. Can you cover those colors, and regroup? There are too many colors... and now you are most likely unable to see any of them, even if you had a winner! A few color options to consider is Light Pewter, White Dove or Grey Owl (all Benjamin Moore) are all colors I have used in combo with Revere Pewter very successfully, and both options could work well in this space. Keep in mind when it is covering a larger space it doesn't look as dark as when it is in just one spot... and it will dry a different color. Another trick that designers sometimes do is purchasing a pearl or semi gloss finish which tends to read brighter since it allows the light to reflect off of the surface. You mentioned Sherwin Williams, but you are referencing Benjamin Moore color names. Benjamin Moore is the only one that does a pearl finish, so that is important. Let us know how you make out! ♥

I regret having to say this, but you can only choose a color in your house. Too many things will influence it. Example: I love the color of my bedroom. It's perfect! I tried it in my living room (directly above the bedroom). That gorgeous, soft grey/green below was a horrific yellow-beige, cat-puke nightmare one floor up. I can't explain why, but it can happen.

Helpful article on houzz. I took from it to consider whether a certain room might hold a purpose, or vibe [different than other rooms]. It could direct to another paint color, maybe a muted color... often dining rooms... https://www.houzz.com/magazine/pick-a-paint-help-how-to-create-a-whole-house-color-palette-stsetivw-vs~13038406