Hidden Sapphire (BM CSP-690)
Illustrative room. Screen colors vary; test a sample before you paint.
Hidden Sapphire (BM CSP-690) is a very deep, cool blue from Benjamin Moore: LRV 6.2, so it reflects about 6 percent of the light that hits it.
Colors that go with Hidden Sapphire
Three Benjamin Moore colors picked for Hidden Sapphire 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 Hidden Sapphire, 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 | Loyal Blue | SW 6510 | 5 | 3.8 | noticeably different |
| Behr | Planetarium | 560D-7 | 7.3 | 7.7 | clearly different |
| Valspar | Boisterous Blue | 4009-6 | 8 | 9.1 | clearly different |
| PPG Paints | Sailor's Coat | 1153-7 | 6 | 7.4 | clearly different |
Lighter and darker in Benjamin Moore
The Benjamin Moore blue colors nearest to Hidden Sapphire (LRV 6.2) by LRV.
Lighter than Hidden Sapphire
Darker than Hidden Sapphire
Color data
| Brand | Benjamin Moore |
|---|---|
| Color code | CSP-690 |
| Hex | #023B4E |
| RGB | 2, 59, 78 |
| HSL | 195°, 95%, 16% |
| LRV (light reflectance value) | 6.2 |
| Lab L*, a*, b* | 22.6, -9.1, -16.3 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Hidden Sapphire (BM CSP-690), published as #023B4E
#00334C
#24434E
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Benjamin Moore
More from Benjamin Moore
Common questions
- What is the LRV of Hidden Sapphire (BM CSP-690)?
- Hidden Sapphire has an LRV of 6.2. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Hidden Sapphire is a very deep color.
- What is the closest match to Hidden Sapphire in another brand?
- Loyal Blue (SW 6510) from Sherwin-Williams, at a deltaE of 3.8 (noticeably different).
- Is Hidden Sapphire warm or cool?
- Benjamin Moore lists Hidden Sapphire as cool, with a Cool Blue undertone. Its Lab b* value is -16.3; 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.