The decision for this particular color
Felted Wool can be considered for exterior if its color and depth suit the space; confirm exterior product, tint and substrate compatibility separately. Felted Wool adds green to a warm gray with more depth than Acier, making a darker colored-neutral comparison worthwhile.
Why the oatmeal fabric and walnut relationship matters
Oatmeal fabric can soften the scheme while walnut adds weight; the wall should preserve a distinction between those large material areas.
Felted Wool has an LRV of 28; Sherwin-Williams Acier SW-9170 is 32. The difference is 4 points, with Acier returning more light under the reference measurement.
Read the facade in sun and shade
Assess the proposed Felted Wool exterior area as a dark shape against the roof and masonry. Examine shade first and then open daylight. Confirm the coating and substrate restrictions with the supplier before approval; a desirable dark color does not establish suitability for every cladding system.
Confirm the coating after the color direction
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.
Felted Wool is being assessed here as a color, not as a complete exterior product specification. Ask the supplier to confirm tint availability, substrate suitability and any restrictions for the intended coating. For factory-finished or vinyl materials, follow the relevant manufacturer requirements rather than choosing solely from a reflectance value. The trim color comparison 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.

