Open Air (SW 6491)
Illustrative room. Screen colors vary; test a sample before you paint.
Open Air (SW 6491) is a light, neutral blue from Sherwin-Williams: LRV 70, so it reflects about 70 percent of the light that hits it.
Colors that go with Open Air
Four Sherwin-Williams colors picked for Open Air by this site's color math: a trim white, a deeper blue, 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 Open Air, 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 | Glacier Blue | 1653 | 69.6 | 1.8 | very close |
| Behr | Peek A Blue | T17-04 | 71.2 | 1.4 | very close |
| Valspar | Dreamy Clouds | 5002-5B | 70 | 1.0 | very close |
| PPG Paints | Julep Green | 1146-3 | 68 | 1.9 | very close |
Lighter and darker in Sherwin-Williams
The Sherwin-Williams blue colors nearest to Open Air (LRV 70) by LRV.
Lighter than Open Air
Darker than Open Air
Color data
| Brand | Sherwin-Williams |
|---|---|
| Color code | SW 6491 |
| Hex | #C7DFE0 |
| RGB | 199, 223, 224 |
| HSL | 182°, 29%, 83% |
| LRV (light reflectance value) | 70 |
| Lab L*, a*, b* | 87.1, -7.7, -3.2 |
| Undertone | Cool |
| Temperature | neutral |
| Color family | Blue |
Same paint, two kinds of light
Open Air (SW 6491), published as #C7DFE0
#B4D5DE
#DAE9E0
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 Open Air (SW 6491)?
- Open Air has an LRV of 70. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Open Air is a light color.
- What is the closest match to Open Air in another brand?
- Dreamy Clouds (Valspar 5002-5B) from Valspar, at a deltaE of 1.0 (very close).
- Is Open Air warm or cool?
- Sherwin-Williams lists Open Air as neutral, with a Cool undertone. Its Lab b* value is -3.2; 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.