Moth Wing and Mushroom: the documented difference
Moth Wing has an LRV of 29; Sherwin-Williams Mushroom SW-9587 is 57. The difference is 28 points, with Mushroom returning more light under the reference measurement. Choose by the material relationship as well as the number. Moth Wing has considerably more depth than Mushroom SW-9587, making it a distinct darker beige-gray direction. Mushroom SW-9587 has a light-to-medium reflectance value; the name alone does not establish a precise undertone.
| Color | Brand / code | LRV |
|---|---|---|
| Moth Wing | Sherwin-Williams SW-9174 | 29 |
| Mushroom | Sherwin-Williams SW-9587 | 57 |
The choice beside ivory seating and dark walnut
Ivory seating creates contrast across the room, while walnut needs its own close boundary check against the wall.
Set up both candidates with ivory seating and dark walnut. Use equal-sized boards with the intended finishes and place them in the same orientation. Do not put one directly beside a window and leave the other in shadow. A difference that follows the position rather than the board is a lighting observation, not evidence that the formula changed.
What the comparison can—and cannot—settle
For a second point of reference, Tony Taupe is recorded at LRV 37.
Check the dark wood against the wall; if both lose their outlines, add a lighter break or select less depth. Assess Moth Wing and Mushroom alone as well as side by side. The unchosen board will not remain in the finished room, and a preference created only by that neighbor may not survive its removal. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Moth Wing SW-9174. The recorded LRV is 29. 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.