Serene Sky (Behr 540C-2)
Illustrative room. Screen colors vary; test a sample before you paint.
Serene Sky (Behr 540C-2) is a light, cool blue from Behr: LRV 72.5, so it reflects about 73 percent of the light that hits it.
Colors that go with Serene Sky
Four Behr colors picked for Serene Sky 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 Serene Sky, 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 | Aviary Blue | SW 6778 | 73 | 1.3 | very close |
| Benjamin Moore | Blue Allure | 771 | 69.3 | 0.9 | indistinguishable |
| Valspar | Rain Dance | 5001-9A | 68 | 1.5 | very close |
| PPG Paints | Surf's Up | 1236-3 | 73 | 0.6 | indistinguishable |
Lighter and darker in Behr
The Behr blue colors nearest to Serene Sky (LRV 72.5 (estimated)) by LRV.
Lighter than Serene Sky
Darker than Serene Sky
Color data
| Brand | Behr |
|---|---|
| Color code | 540C-2 |
| Hex | #C3E3EB |
| RGB | 195, 227, 235 |
| HSL | 192°, 50%, 84% |
| LRV (light reflectance value) | 72.5 (estimated from the hex) |
| Lab L*, a*, b* | 88.2, -8.8, -7.4 |
| Undertone | Cool |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Serene Sky (Behr 540C-2), published as #C3E3EB
#B0D9E9
#D7EDEB
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 Serene Sky (Behr 540C-2)?
- Serene Sky has an LRV of 72.5 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Serene Sky is a light color.
- What is the closest match to Serene Sky in another brand?
- Surf's Up (PPG 1236-3) from PPG Paints, at a deltaE of 0.6 (indistinguishable).
- Is Serene Sky warm or cool?
- Behr lists Serene Sky as cool, with a Cool undertone. Its Lab b* value is -7.4; 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.