Seaworthy (SW 7620)
Illustrative room. Screen colors vary; test a sample before you paint.
Seaworthy (SW 7620) is a very deep, cool blue from Sherwin-Williams: LRV 7, so it reflects about 7 percent of the light that hits it.
Colors that go with Seaworthy
Three Sherwin-Williams colors picked for Seaworthy by this site's color math: a trim white, a quiet contrast from another family, a dark accent. Sherwin-Williams did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Seaworthy, 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 |
|---|---|---|---|---|---|
| Benjamin Moore | River Blue | 2057-10 | 7.3 | 3.3 | noticeably different |
| Behr | Nocturne Blue | HDC-CL-28 | 6.7 | 0.9 | indistinguishable |
| Valspar | Everglade Deck | 5011-3 | 7 | 2.7 | noticeably different |
| PPG Paints | Sailor's Coat | 1153-7 | 6 | 2.1 | very close |
Lighter and darker in Sherwin-Williams
The Sherwin-Williams blue colors nearest to Seaworthy (LRV 7) by LRV.
Lighter than Seaworthy
Darker than Seaworthy
Color data
| Brand | Sherwin-Williams |
|---|---|
| Color code | SW 7620 |
| Hex | #314D58 |
| RGB | 49, 77, 88 |
| HSL | 197°, 28%, 27% |
| LRV (light reflectance value) | 7 |
| Lab L*, a*, b* | 31.0, -7.2, -9.8 |
| Undertone | Cool |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Seaworthy (SW 7620), published as #314D58
#1B4556
#445658
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Sherwin-Williams
More from Sherwin-Williams
Common questions
- What is the LRV of Seaworthy (SW 7620)?
- Seaworthy has an LRV of 7. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Seaworthy is a very deep color.
- What is the closest match to Seaworthy in another brand?
- Nocturne Blue (Behr HDC-CL-28) from Behr, at a deltaE of 0.9 (indistinguishable).
- Is Seaworthy warm or cool?
- Sherwin-Williams lists Seaworthy as cool, with a Cool undertone. Its Lab b* value is -9.8; a higher b* is warmer and yellower, a lower one cooler and bluer.
Sources: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0). 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.