Benjamin Moore → Sherwin-Williams
Sherwin-Williams equivalent of Benjamin Moore Wetherburn's Blue CW-580
The closest Sherwin-Williams colour is Portsmouth (SW 9644), at ΔE 2.94 — very close.
Portsmouth is the closest Sherwin-Williams makes, but at ΔE 2.94 it is a near miss rather than a match. Expect a visible difference where the two meet — on adjoining walls, or against existing trim.
Why people switch between Benjamin Moore and Sherwin-Williams
Most people comparing Benjamin Moore to Sherwin-Williams are not shopping for a new colour. They have already chosen one, and then hit a price difference or a painter who buys from a single supplier. The question is what goes on the wall instead.
How close Portsmouth really is
- Delta E (CIEDE2000)
- 2.94very close
- LRV
- 21.94Benjamin Moore is 23.6
- Hex
- #768482#6F8486 in Benjamin Moore
Nearly the same lightness, more muted, with a small hue shift. Its LRV is 1.7 points lower.
Benjamin Moore and Sherwin-Williams publish LRV against their own measurements, and here the two disagree with the swatches: Portsmouth reads slightly lighter than Wetherburn's Blue in colour space while carrying the lower published LRV. Treat LRV as comparable within a brand, not across two.
Other Sherwin-Williams options
Worth knowing if Portsmouth is discontinued locally, or if you want to shift the colour slightly warmer or cooler.
- Blustery Sky SW 9140ΔE 3.19 · very close · Nearly the same lightness, with a small hue shift. Its LRV is 1.9 points lower.
- Refuge SW 6228ΔE 4.27 · close · The candidate is darker, more saturated, with a small hue shift. Its LRV is 4.9 points lower.
- Studio Blue Green SW 0047ΔE 4.33 · close · The candidate is darker, more saturated, with a small hue shift. Its LRV is 3.2 points lower.
Matches in every other brand
See Benjamin Moore Wetherburn's Blue CW-580 matched across all 13 brands →