Lagoon (Behr 520D-6)

Illustrative room. Screen colors vary; test a sample before you paint.
Lagoon (Behr 520D-6) is a deep, cool blue from Behr: LRV 24.1, so it reflects about 24 percent of the light that hits it.
Colors that go with Lagoon
Four Behr colors picked for Lagoon by this site's color math: a trim white, a deeper blue, a quiet contrast from another family, a dark accent. Behr did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Lagoon, ranked by CIEDE2000 (deltaE): under 1.0 is indistinguishable, 1.0 to 2.3 very close, 2.3 to 5 noticeably different, over 5 clearly different.
| Brand | Closest color | Code | LRV | deltaE | How close |
|---|---|---|---|---|---|
| Sherwin-Williams | Cloudburst | SW 6487 | 26 | 3.9 | noticeably different |
| Benjamin Moore | Rendezvous Bay | 726 | 26.5 | 1.8 | very close |
| Valspar | Tropical Oasis | 5004-8B | 24 | 2.3 | very close |
| PPG Paints | Acapulco Cliffs | 1150-5 | 28 | 3.5 | noticeably different |
Lighter and darker in Behr
The Behr blue colors nearest to Lagoon (LRV 24.1 (estimated)) by LRV.
Lighter than Lagoon
Darker than Lagoon
Color data
| Brand | Behr |
|---|---|
| Color code | 520D-6 |
| Hex | #42929C |
| RGB | 66, 146, 156 |
| HSL | 187°, 41%, 44% |
| LRV (light reflectance value) | 24.1 (estimated from the hex) |
| Lab L*, a*, b* | 56.2, -21.3, -12.7 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Lagoon (Behr 520D-6), published as #42929C
#1F889A
#5C9C9C
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Behr
More from Behr
Common questions
- What is the LRV of Lagoon (Behr 520D-6)?
- Lagoon has an LRV of 24.1 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Lagoon is a deep color.
- What is the closest match to Lagoon in another brand?
- Rendezvous Bay (BM 726) from Benjamin Moore, at a deltaE of 1.8 (very close).
- Is Lagoon warm or cool?
- Behr lists Lagoon as cool, with a Cool Blue undertone. Its Lab b* value is -12.7; a higher b* is warmer and yellower, a lower one cooler and bluer.
Sources: hex as published by the manufacturer, via PaintDB (CC BY 4.0); LRV is not published by Behr for this color and is estimated here from the color's own hex value. Color differences are CIEDE2000 values computed by this site from the hex values (data snapshot 2026-10-01). Color names and codes belong to their manufacturers.