Choose the edge before choosing the white
The best trim for Felted Wool depends on the fixed whites and the amount of contrast you want. Compare a close boundary with a clearer outline before selecting a named white. Felted Wool adds green to a warm gray with more depth than Acier, making a darker colored-neutral comparison worthwhile.
Oatmeal fabric can soften the scheme while walnut adds weight; the wall should preserve a distinction between those large material areas.
Put the trim sample in its real orientation
Decide whether trim should outline Felted Wool sharply or sit within the dark painted area. Test a light strip and a closer-value strip on the actual casing shape. This is a choice about architectural emphasis: bright outlines highlight every opening, while a quieter boundary changes the room silhouette.
The manufacturer's coordinating suggestions include Shoji White SW7042, Skyline Steel SW1015 and Foxhall Green SW9184. These are separate named colors to sample, not interchangeable formulas. For the material direction considered here—oatmeal fabric and walnut—choose which surface each candidate would occupy before deciding that the whole set belongs in the room.
The condition for keeping Felted Wool
Set a less green gray beside it, then choose the sample that joins the fabric and wood most convincingly. The coordinating color options covers that related choice. The cabinet color guide covers that related choice.
Approve both intended finishes beside Felted Wool. The same color on trim and wall can still show a boundary because the surfaces reflect light differently; a single flat paint chip cannot settle that finish decision. The LRV and depth guide covers that related choice. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Felted Wool SW-9171. The recorded LRV is 28. Named comparison values come from the respective manufacturers; material schemes are editorial suggestions.
This guide reviews published color information and proposes practical sample checks. It does not claim first-hand paint testing or customer-review scores. Sherwin-Williams does not sponsor or endorse this site. Product names and trademarks belong to their respective owners. Confirm the color in a physical sample and select the coating for the actual surface and finish.