Cathedral Glass (PPG 1148-5)
Illustrative room. Screen colors vary; test a sample before you paint.
Cathedral Glass (PPG 1148-5) is a deep, cool blue from PPG Paints: LRV 29, so it reflects about 29 percent of the light that hits it.
Colors that go with Cathedral Glass
Four PPG Paints colors picked for Cathedral Glass by this site's color math: a trim white, a deeper blue, a quiet contrast from another family, a dark accent. PPG Paints did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Cathedral Glass, 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 | Tranquil Aqua | SW 7611 | 30 | 1.7 | very close |
| Benjamin Moore | Hemlock | 719 | 28.9 | 1.6 | very close |
| Behr | Blue Agave | PMD-35 | 30.1 | 1.6 | very close |
| Valspar | Secluded Garden | 5002-4A | 30 | 2.5 | noticeably different |
Lighter and darker in PPG Paints
The PPG Paints blue colors nearest to Cathedral Glass (LRV 29) by LRV.
Lighter than Cathedral Glass
Darker than Cathedral Glass
Color data
| Brand | PPG Paints |
|---|---|
| Color code | 1148-5 |
| Hex | #7A999C |
| RGB | 122, 153, 156 |
| HSL | 185°, 15%, 55% |
| LRV (light reflectance value) | 29 |
| Lab L*, a*, b* | 61.1, -10.0, -5.1 |
| Undertone | Cool |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Cathedral Glass (PPG 1148-5), published as #7A999C
#678F9A
#8DA39C
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from PPG Paints
More from PPG Paints
Common questions
- What is the LRV of Cathedral Glass (PPG 1148-5)?
- Cathedral Glass has an LRV of 29. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Cathedral Glass is a deep color.
- What is the closest match to Cathedral Glass in another brand?
- Blue Agave (Behr PMD-35) from Behr, at a deltaE of 1.6 (very close).
- Is Cathedral Glass warm or cool?
- PPG Paints lists Cathedral Glass as cool, with a Cool undertone. Its Lab b* value is -5.1; 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.