River Rapids (Behr S450-6A)
Illustrative room. Screen colors vary; test a sample before you paint.
River Rapids (Behr S450-6A) is a very deep, cool blue from Behr: LRV 14.8, so it reflects about 15 percent of the light that hits it.
Colors that go with River Rapids
Four Behr colors picked for River Rapids 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 River Rapids, 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 | Silken Peacock | SW 9059 | 15 | 3.5 | noticeably different |
| Benjamin Moore | Bella Blue | 720 | 17.5 | 1.8 | very close |
| Valspar | Ocean Abyss | 5002-6C | 14 | 3.3 | noticeably different |
| PPG Paints | Vining Ivy | 1148-6 | 15 | 2.2 | very close |
Lighter and darker in Behr
The Behr blue colors nearest to River Rapids (LRV 14.8 (estimated)) by LRV.
Lighter than River Rapids
Darker than River Rapids
Color data
| Brand | Behr |
|---|---|
| Color code | S450-6A |
| Hex | #4D7179 |
| RGB | 77, 113, 121 |
| HSL | 191°, 22%, 39% |
| LRV (light reflectance value) | 14.8 (estimated from the hex) |
| Lab L*, a*, b* | 45.3, -10.6, -8.5 |
| Undertone | Cool |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
River Rapids (Behr S450-6A), published as #4D7179
#386877
#607A79
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 River Rapids (Behr S450-6A)?
- River Rapids has an LRV of 14.8 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so River Rapids is a very deep color.
- What is the closest match to River Rapids in another brand?
- Bella Blue (BM 720) from Benjamin Moore, at a deltaE of 1.8 (very close).
- Is River Rapids warm or cool?
- Behr lists River Rapids as cool, with a Cool undertone. Its Lab b* value is -8.5; 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.