Benjamin Moore Classic Gray (OC-23): closest Sherwin-Williams matches

Neither brand publishes an official equivalent. Comparing published digital color values, the closest Sherwin-Williams color is Moderne White (SW 6168), with a CIEDE2000 Delta E of 0.50 (practically identical). The next closest are Heron Plume (SW 6070, Delta E 0.57) and Mortar (SW 9584, Delta E 0.60).

Benjamin Moore publishes an LRV (light reflectance value) of 73.67 for Classic Gray (OC-23). LRV runs from 0 (black) to 100 (white). Moderne White has a published LRV of 74.473.

Benjamin Moore publishes Classic Gray (OC-23) as hex #E3E0D7. A hex code describes the color on screens; the real paint can look different depending on light, sheen and the surface.

Put a physical sample of both colors side by side on your wall and look at them in morning, afternoon and evening light. A Delta E under 2 is usually hard to tell apart side by side; above 3.5 most people will see a difference.