Benjamin Moore Thundercloud Gray#B8BDC0 · LRV 50
Thundercloud Gray reads as a blue / cool — light — bounces daylight without going clinical. The notes below cover the spec, what Benjamin Moore 2124-40 actually looks like under different light, and the closest matches at competing US brands.
Color spec
| Brand | Benjamin Moore |
| Name | Thundercloud Gray |
| SKU | 2124-40 |
| Hex | #B8BDC0 |
| RGB | 184, 189, 192 |
| HSL | 202°, 6%, 74% |
| LRV | 50 |
| Undertone | blue / cool |
| Family | Gray |
About Benjamin Moore Thundercloud Gray
At LRV 50, Thundercloud Gray is a light color that bounces daylight around a room without tipping into stark white. Because it carries almost no measurable hue, it stays a true neutral and pairs cleanly with nearly any trim or floor. It holds its undertone in most exposures, which is what makes light shades like this so forgiving room to room.
Thundercloud Gray is an easy whole-room color for living spaces and bedrooms, and light enough to carry onto trim or a ceiling if you want a soft, seamless look. Grays like this read as a modern neutral and sit comfortably alongside both warm woods and cool metals.
Kompozit alternative
The closest hex in the Kompozit deck, ranked by ΔE2000 (perceptual color difference). ΔE under 2 is indistinguishable to most eyes; under 5 is a very close visual match.
Closest matches at every US brand
9 brands · top 5 each5 closest matches per brand by ΔE2000, computed against each brand's full deck. Tap any swatch for its full single-color spec; tap the brand title to browse all gray from that brand.
Behr
PPG / Glidden
Dunn-Edwards
Sherwin-Williams
Valspar
Magnolia Home
Farrow & Ball
Clare
Similar Benjamin Moore colors
closest in the Benjamin Moore deckThe nearest shades to Thundercloud Gray within Benjamin Moore's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
Coordinated palette
Generated by hue-rotating #B8BDC0 in HSL space. Pair Thundercloud Gray with one accent and one neutral — the swatches below are starting points, not final picks.
Accessibility (WCAG contrast)
WCAG 2.1: AA = 4.5:1 normal text · AA Large = 3:1 large text · AAA = 7:1 normal text.