Benjamin Moore Hale Navy (HC-154): closest Sherwin-Williams matches

Neither brand publishes an official equivalent. Comparing published digital color values, the closest Sherwin-Williams color is Sea Mariner (SW 9640), with a CIEDE2000 Delta E of 0.63 (practically identical). The next closest are Charcoal Blue (SW 2739, Delta E 2.47) and Sea Serpent (SW 7615, Delta E 3.08).

Benjamin Moore publishes an LRV (light reflectance value) of 8.36 for Hale Navy (HC-154). LRV runs from 0 (black) to 100 (white). Sea Mariner has a published LRV of 6.678.

Benjamin Moore publishes Hale Navy (HC-154) as hex #434B56. 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.