Sonic Blue (Behr T15-11)
Illustrative room. Screen colors vary; test a sample before you paint.
Sonic Blue (Behr T15-11) is a deep, cool blue from Behr: LRV 33.7, so it reflects about 34 percent of the light that hits it.
Colors that go with Sonic Blue
Four Behr colors picked for Sonic Blue 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 Sonic Blue, 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 | Freshwater | SW 6774 | 32 | 3.0 | noticeably different |
| Benjamin Moore | Spa Day | CSP-635 | 33.4 | 1.8 | very close |
| Valspar | Gone Fishing | 5004-8A | 31 | 3.0 | noticeably different |
| PPG Paints | Blue Calypso | 1235-5 | 33 | 1.3 | very close |
Lighter and darker in Behr
The Behr blue colors nearest to Sonic Blue (LRV 33.7 (estimated)) by LRV.
Lighter than Sonic Blue
Darker than Sonic Blue
Color data
| Brand | Behr |
|---|---|
| Color code | T15-11 |
| Hex | #5BA8B9 |
| RGB | 91, 168, 185 |
| HSL | 191°, 40%, 54% |
| LRV (light reflectance value) | 33.7 (estimated from the hex) |
| Lab L*, a*, b* | 64.8, -19.1, -16.1 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Sonic Blue (Behr T15-11), published as #5BA8B9
#3F9EB7
#74B2B9
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 Sonic Blue (Behr T15-11)?
- Sonic Blue has an LRV of 33.7 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Sonic Blue is a deep color.
- What is the closest match to Sonic Blue in another brand?
- Blue Calypso (PPG 1235-5) from PPG Paints, at a deltaE of 1.3 (very close).
- Is Sonic Blue warm or cool?
- Behr lists Sonic Blue as cool, with a Cool Blue undertone. Its Lab b* value is -16.1; 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.