Undercool (SW 6957)
Illustrative room. Screen colors vary; test a sample before you paint.
Undercool (SW 6957) is a medium, cool blue from Sherwin-Williams: LRV 49, so it reflects about 49 percent of the light that hits it.
Colors that go with Undercool
Four Sherwin-Williams colors picked for Undercool 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 Undercool, 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 | Pool Party | 2059-50 | 50.3 | 1.4 | very close |
| Behr | Horizon Haze | 540B-4 | 48.7 | 0.7 | indistinguishable |
| Valspar | Summer Splash | 5002-9C | 53 | 1.7 | very close |
| PPG Paints | Horizon Haze | 1237-4 | 48 | 1.4 | very close |
Lighter and darker in Sherwin-Williams
The Sherwin-Williams blue colors nearest to Undercool (LRV 49) by LRV.
Lighter than Undercool
Darker than Undercool
Color data
| Brand | Sherwin-Williams |
|---|---|
| Color code | SW 6957 |
| Hex | #7FC3E1 |
| RGB | 127, 195, 225 |
| HSL | 198°, 62%, 69% |
| LRV (light reflectance value) | 49 |
| Lab L*, a*, b* | 75.4, -13.7, -21.7 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Undercool (SW 6957), published as #7FC3E1
#66B9DF
#97CDE1
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 Undercool (SW 6957)?
- Undercool has an LRV of 49. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Undercool is a medium color.
- What is the closest match to Undercool in another brand?
- Horizon Haze (Behr 540B-4) from Behr, at a deltaE of 0.7 (indistinguishable).
- Is Undercool warm or cool?
- Sherwin-Williams lists Undercool as cool, with a Cool Blue undertone. Its Lab b* value is -21.7; 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.