Deep Secret (BM CSP-625)
Illustrative room. Screen colors vary; test a sample before you paint.
Deep Secret (BM CSP-625) is a very deep, neutral gray from Benjamin Moore: LRV 11.6, so it reflects about 12 percent of the light that hits it.
Colors that go with Deep Secret
Three Benjamin Moore colors picked for Deep Secret by this site's color math: a trim white, a quiet contrast from another family, a dark accent. Benjamin Moore did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Deep Secret, 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 | Outerspace | SW 6251 | 12 | 2.5 | noticeably different |
| Behr | City Rain | PPU25-21 | 10.3 | 1.4 | very close |
| Valspar | Volcanic Ash | 4009-1 | 10 | 0.7 | indistinguishable |
| PPG Paints | Mysterious | 1037-6 | 11 | 2.1 | very close |
Lighter and darker in Benjamin Moore
The Benjamin Moore gray colors nearest to Deep Secret (LRV 11.6) by LRV.
Lighter than Deep Secret
Darker than Deep Secret
Color data
| Brand | Benjamin Moore |
|---|---|
| Color code | CSP-625 |
| Hex | #525A60 |
| RGB | 82, 90, 96 |
| HSL | 206°, 8%, 35% |
| LRV (light reflectance value) | 11.6 |
| Lab L*, a*, b* | 37.8, -1.7, -4.5 |
| Undertone | Cool |
| Temperature | neutral |
| Color family | Gray |
Same paint, two kinds of light
Deep Secret (BM CSP-625), published as #525A60
#42515E
#626360
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Benjamin Moore
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Common questions
- What is the LRV of Deep Secret (BM CSP-625)?
- Deep Secret has an LRV of 11.6. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Deep Secret is a very deep color.
- What is the closest match to Deep Secret in another brand?
- Volcanic Ash (Valspar 4009-1) from Valspar, at a deltaE of 0.7 (indistinguishable).
- Is Deep Secret warm or cool?
- Benjamin Moore lists Deep Secret as neutral, with a Cool undertone. Its Lab b* value is -4.5; 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.