Mermaid Sea (Behr P440-7)
Illustrative room. Screen colors vary; test a sample before you paint.
Mermaid Sea (Behr P440-7) is a very deep, neutral green from Behr: LRV 16.8, so it reflects about 17 percent of the light that hits it.
Colors that go with Mermaid Sea
Four Behr colors picked for Mermaid Sea by this site's color math: a trim white, a deeper green, 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 Mermaid Sea, 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 | Ionian | SW 6754 | 20 | 3.9 | noticeably different |
| Benjamin Moore | Lucky Shamrock | 609 | 18.1 | 0.8 | indistinguishable |
| Valspar | Elegant Silk | 5010-7 | 18 | 3.2 | noticeably different |
| PPG Paints | Pinehurst | 1140-6 | 16 | 2.0 | very close |
Lighter and darker in Behr
The Behr green colors nearest to Mermaid Sea (LRV 16.8 (estimated)) by LRV.
Lighter than Mermaid Sea
Darker than Mermaid Sea
Color data
| Brand | Behr |
|---|---|
| Color code | P440-7 |
| Hex | #297F6D |
| RGB | 41, 127, 109 |
| HSL | 167°, 51%, 33% |
| LRV (light reflectance value) | 16.8 (estimated from the hex) |
| Lab L*, a*, b* | 48.0, -30.0, 2.3 |
| Undertone | Cool Green |
| Temperature | neutral |
| Color family | Green |
Same paint, two kinds of light
Mermaid Sea (Behr P440-7), published as #297F6D
#00756B
#43896D
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 Mermaid Sea (Behr P440-7)?
- Mermaid Sea has an LRV of 16.8 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Mermaid Sea is a very deep color.
- What is the closest match to Mermaid Sea in another brand?
- Lucky Shamrock (BM 609) from Benjamin Moore, at a deltaE of 0.8 (indistinguishable).
- Is Mermaid Sea warm or cool?
- Behr lists Mermaid Sea as neutral, with a Cool Green undertone. Its Lab b* value is 2.3; 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.