What 20 tells you about Cavern Clay
The published LRV of Sherwin-Williams Cavern Clay SW-7701 is 20. It describes light reflectance; it does not specify an undertone or predict the brightness of your room. Cavern Clay is a red-orange color choice with depth, making the size of the painted area as important as the exact shade.
The choice beside terracotta tile and neutral linen
Terracotta already provides a large orange field; plain linen can interrupt that repetition without introducing another strong hue.
Draw the proposed dark area on a room photograph and compare it with a broad physical Cavern Clay 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
Cavern Clay has an LRV of 20; Benjamin Moore Blazing Orange 2011-20 is 21.65. The difference is 1.65 points, with Blazing Orange returning more light under the reference measurement. Cavern Clay is a warm red-orange with considerable color presence. 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.
Use a plain pale fabric to break up the warm surfaces, and compare the paint to the tile's dominant color. Do not read LRV 20 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 Cavern Clay SW-7701. The recorded LRV is 20. 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.