ColorplanBenjamin Moore Blue Lagoon (2054-40) is a deep blue with a cool blue-green undertone and an LRV of 28. For trim, try Morning Sky Blue (2053-70).
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 | Blue |
| LRV | 27.8 (dark; 0 = black, 100 = pure white) |
| HEX | #409CAC |
| RGB | 64, 156, 172 |
| HSL | 189°, 46%, 46% |
About Blue Lagoon
Blue Lagoon (2054-40) is a deep, medium-strength blue from Benjamin Moore that leans green. With an LRV of 28, Blue Lagoon absorbs more light than it reflects, so it works best in rooms with good natural light or where you want a cozier feel.
North-facing light makes Blue Lagoon read cooler and slightly darker, while warm south-facing light softens it. It's a good fit for bedrooms, offices, kitchen islands and cabinets and accent walls. It's very close to Ash Blue (2057-40); you'd mostly see the difference side by side.
How Blue Lagoon changes with the light
Blue Lagoon 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
Blue Lagoon has a cool undertone that north light will push cooler and grayer; warm white trim helps balance it.
East-facing rooms
Blue Lagoon 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 Blue Lagoon close to its true color, slightly lighter and warmer.
West-facing rooms
Blue Lagoon looks cool in the morning and warms up in the golden late-afternoon light.
See Blue Lagoon in real homes
Photos people have shared of Blue Lagoon in their own rooms. Opens Instagram or Pinterest in a new tab.
Blue Lagoon 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
Closest available · ΔE 13.5
Also close: Daphne (ΔE 14.1)
Compare side by side →Farrow & Ball
Closest available · ΔE 8.7
Also close: Chinese Blue (ΔE 9.0)
Compare side by side →Behr
Closest available · ΔE 11.1
Also close: Blueprint (ΔE 11.8)
Compare side by side →Similar Benjamin Moore colors
Blue Lagoon questions
What undertone does Blue Lagoon have?
Blue Lagoon has a cool blue-green undertone, so it reads as a cool color. North-facing light makes Blue Lagoon read cooler and slightly darker, while warm south-facing light softens it.
Is Blue Lagoon a light or dark color?
Blue Lagoon has a light reflectance value (LRV) of 27.8 on a scale where 0 is black and 100 is pure white, which makes it a deep color. With an LRV of 28, Blue Lagoon absorbs more light than it reflects, so it works best in rooms with good natural light or where you want a cozier feel.
What is the closest match to Blue Lagoon in other paint brands?
Sherwin-Williams: Bracing Blue SW 6242 (closest available, ΔE 13.5); Farrow & Ball: Stone Blue No.86 (closest available, ΔE 8.7); Behr: Dragonfly PPU12-03 (closest available, ΔE 11.1). Matches are calculated with the CIEDE2000 color difference formula; always check a physical sample before buying.
What trim and ceiling color goes with Blue Lagoon?
Try Morning Sky Blue (2053-70) on trim and Palest Pistachio (2122-60) on the ceiling. Both are Benjamin Moore whites that share Blue Lagoon's undertone.
Where does Blue Lagoon work best?
Blue Lagoon works well in bedrooms, offices, kitchen islands and cabinets and accent walls. With an LRV of 28, Blue Lagoon absorbs more light than it reflects, so it works best in rooms with good natural light or where you want a cozier feel.
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