Cosmic Cobalt (Behr P500-7)
Illustrative room. Screen colors vary; test a sample before you paint.
Cosmic Cobalt (Behr P500-7) is a very deep, cool blue from Behr: LRV 12.8, so it reflects about 13 percent of the light that hits it.
Colors that go with Cosmic Cobalt
Four Behr colors picked for Cosmic Cobalt 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 Cosmic Cobalt, 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 | Blue Chip | SW 6959 | 13 | 1.9 | very close |
| Benjamin Moore | Seaport Blue | 2060-30 | 16.1 | 1.7 | very close |
| Valspar | Peek-A-Boo Blue | 4007-10C | 15 | 4.9 | noticeably different |
| PPG Paints | Blue Oasis | 1158-6 | 14 | 2.6 | noticeably different |
Lighter and darker in Behr
The Behr blue colors nearest to Cosmic Cobalt (LRV 12.8 (estimated)) by LRV.
Lighter than Cosmic Cobalt
Darker than Cosmic Cobalt
Color data
| Brand | Behr |
|---|---|
| Color code | P500-7 |
| Hex | #156A9B |
| RGB | 21, 106, 155 |
| HSL | 202°, 76%, 35% |
| LRV (light reflectance value) | 12.8 (estimated from the hex) |
| Lab L*, a*, b* | 42.5, -5.8, -33.3 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Cosmic Cobalt (Behr P500-7), published as #156A9B
#006199
#3F739C
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 Cosmic Cobalt (Behr P500-7)?
- Cosmic Cobalt has an LRV of 12.8 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Cosmic Cobalt is a very deep color.
- What is the closest match to Cosmic Cobalt in another brand?
- Seaport Blue (BM 2060-30) from Benjamin Moore, at a deltaE of 1.7 (very close).
- Is Cosmic Cobalt warm or cool?
- Behr lists Cosmic Cobalt as cool, with a Cool Blue undertone. Its Lab b* value is -33.3; 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.