What 29 tells you about Moth Wing
The published LRV of Sherwin-Williams Moth Wing SW-9174 is 29. It describes light reflectance; it does not specify an undertone or predict the brightness of your room. Moth Wing has considerably more depth than Mushroom SW-9587, making it a distinct darker beige-gray direction.
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.
Draw the proposed dark area on a room photograph and compare it with a broad physical Moth Wing sample in shadow. The LRV describes the starting depth, while the size and location of that area determine its role. Check whether adjacent dark furniture remains legible.
What the comparison can—and cannot—settle
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. Moth Wing is a warm beige-gray with a substantial midtone depth. The value measures reflectance, so it cannot by itself identify an undertone, a coating finish or the amount of illumination needed in the room. The daylight and evening-light checks covers that related choice.
Check the dark wood against the wall; if both lose their outlines, add a lighter break or select less depth. Do not read LRV 29 as a percentage improvement in perceived room brightness. Make the decision with the board upright at the actual wall or cabinet position, including the least illuminated portion. The north-facing room assessment covers that related choice. 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.

