Benjamin Moore Pearl (CW-640) is a mid-tone cool gray with a green undertone and an LRV of 42. Closest matches: Sherwin-Williams Oyster Bay (SW 6206), Farrow & Ball Light Blue (No.22) and Behr Brampton Gray (PPU11-16). For trim, try Ultra White (CC-10).
Room Preview
This photo shows walls only. Photos show the color in a real room's light; your own light will change it.
Suggested trim and ceiling are Benjamin Moore whites that share this color's undertone.
Color Details
| Family | Gray |
| LRV | 42.1 (mid-tone; 0 = black, 100 = pure white) |
| HEX | #A7B0A9 |
| RGB | 167, 176, 169 |
| HSL | 133°, 5%, 67% |
About Pearl
Pearl (CW-640) is a mid-tone cool gray from Benjamin Moore with a green undertone. With an LRV of 42, Pearl has visible color without darkening a room much.
North-facing light makes Pearl read cooler and slightly darker, while warm south-facing light softens it. It's a good fit for bedrooms, offices, accent walls and kitchen cabinets. It's very close to Castle Walls (1573); you'd mostly see the difference side by side.
How Pearl changes with the light
Pearl has a cool undertone. North light will push it cooler and grayer, while south and west light warm it up. If your room faces north, look at it next to a warm white trim.
North-facing rooms
Pearl has a cool undertone that north light will push cooler and grayer; warm white trim helps balance it.
East-facing rooms
Pearl will look warmer and brighter in the morning and cooler and grayer by afternoon; check a sample at both times.
South-facing rooms
Bright south light shows Pearl close to its true color, slightly lighter and warmer.
West-facing rooms
Pearl looks cool in the morning and warms up in the golden late-afternoon light.
See Pearl in real homes
Photos people have shared of Pearl in their own rooms. Opens Instagram or Pinterest in a new tab.
Pearl equivalents in other brands
The closest color from each brand. ΔE (“delta E”) scores how different two colors look: under 2.5 is very hard to tell apart on a wall, over 5 is clearly different.
Sherwin-Williams
Very close · ΔE 2.3
Also close: Silvermist (ΔE 2.4)
Compare side by side →Similar Benjamin Moore colors
Pearl questions
What undertone does Pearl have?
Pearl has a green undertone, so it reads as a cool color. North-facing light makes Pearl read cooler and slightly darker, while warm south-facing light softens it.
Is Pearl a light or dark color?
Pearl has a light reflectance value (LRV) of 42.1 on a scale where 0 is black and 100 is pure white, which makes it a mid-tone color. With an LRV of 42, Pearl has visible color without darkening a room much.
What is the closest match to Pearl in other paint brands?
Sherwin-Williams: Oyster Bay SW 6206 (very close, ΔE 2.3); Farrow & Ball: Light Blue No.22 (close, ΔE 3.5); Behr: Brampton Gray PPU11-16 (close, ΔE 4.2). Matches are calculated with the CIEDE2000 color difference formula; always check a physical sample before buying.
What trim and ceiling color goes with Pearl?
Try Ultra White (CC-10) on trim and Distant Gray (OC-68) on the ceiling. Both are Benjamin Moore whites that share Pearl's undertone.
Where does Pearl work best?
Pearl works well in bedrooms, offices, accent walls and kitchen cabinets. With an LRV of 42, Pearl has visible color without darkening a room much.
Planning more than one room?
Build a whole-house palette and share it with your contractor. Free.

