Calypso Blue (BM 727)
Illustrative room. Screen colors vary; test a sample before you paint.
Calypso Blue (BM 727) is a very deep, cool blue from Benjamin Moore: LRV 18.3, so it reflects about 18 percent of the light that hits it.
Colors that go with Calypso Blue
Four Benjamin Moore colors picked for Calypso Blue by this site's color math: a trim white, a deeper blue, a quiet contrast from another family, a dark accent. Benjamin Moore did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Calypso Blue, 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 | Great Falls | SW 6495 | 15 | 2.6 | noticeably different |
| Behr | Calypso Blue | HDC-CL-27 | 17.3 | 1.6 | very close |
| Valspar | Starry Sky | 5005-8C | 18 | 2.4 | noticeably different |
| PPG Paints | Bermuda | 1150-6 | 17 | 2.8 | noticeably different |
Lighter and darker in Benjamin Moore
The Benjamin Moore blue colors nearest to Calypso Blue (LRV 18.3) by LRV.
Lighter than Calypso Blue
Darker than Calypso Blue
Color data
| Brand | Benjamin Moore |
|---|---|
| Color code | 727 |
| Hex | #397A85 |
| RGB | 57, 122, 133 |
| HSL | 189°, 40%, 37% |
| LRV (light reflectance value) | 18.3 |
| Lab L*, a*, b* | 47.6, -17.3, -12.3 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Calypso Blue (BM 727), published as #397A85
#177183
#518385
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Benjamin Moore
More from Benjamin Moore
Common questions
- What is the LRV of Calypso Blue (BM 727)?
- Calypso Blue has an LRV of 18.3. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Calypso Blue is a very deep color.
- What is the closest match to Calypso Blue in another brand?
- Calypso Blue (Behr HDC-CL-27) from Behr, at a deltaE of 1.6 (very close).
- Is Calypso Blue warm or cool?
- Benjamin Moore lists Calypso Blue as cool, with a Cool Blue undertone. Its Lab b* value is -12.3; 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.