Thundercloud Gray 2124-40 is a gray paint color from Benjamin Moore. It has a hex value of #B9BEC1, estimated LRV 51 and a cool (blue) undertone. Its closest cross-brand match is French Silver from Behr (nearly identical), with 49 more equivalents across other brands.
Benjamin Moore · #B9BEC1 · 2124-40
Thundercloud Gray
51%Estimated LRV
Cool (Blue)Undertone
Thundercloud Gray Technical Profile
HEX Code#B9BEC1
RGB185, 190, 193
Estimated LRV51.0
UndertoneCool (Blue)
Digital swatches and calculated matches are approximations. Catalog LRV values may be calculated estimates, not manufacturer measurements. Data and matching method. Check the brand reference and physical samples before purchase.
Color Familygray
BrandBenjamin Moore
Test it in your room
Place physical samples beside your flooring and trim. Check them in daylight and with your evening lights before buying paint.
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Compare alternatives to Thundercloud Gray
Digital candidates from other paint brands, ranked by color similarity. Always verify with a physical sample. How we calculate match accuracy →
French Silver
Behr
#B8BCBE
Close digital match
Silver Lined
Dunn-Edwards
#BBBFC3
Close digital match
Platinum Ring
Kilz
#BCC1C3
Close digital match
Gray Frost
PPG
#B8BFC2
Close digital match
Elephant Trunk
Dutch Boy
#BBBEBF
Close digital match
Lazy Gray
Sherwin-Williams
#BEC1C3
Close digital match
Voyage
Valspar
#B5BBC0
Close digital match
Marseilles
Hirshfield's
#B7BBBB
Close digital match
Prairie Smoke
Vista Paint
#BABDBC
Similar digital color
Agate Grey
RAL
#C3C3C3
Similar digital color
Parma Gray
Farrow & Ball
#B2BFC5
Similar digital color
Wool .02
Colorhouse
#C1CDCD
Visible digital difference
Seeing a close call? Order a peel-and-stick sample of Thundercloud Gray — or sample it next to its top matches — Samplize buy 8 peel-and-stick samples, get 2 free.
Generated palette previews
Colors That Work With Thundercloud Gray
These are generated digital colors, not named manufacturer paints. Use the palette tools to find paint candidates, then compare physical samples.
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Thundercloud Gray
#B9BEC1
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#858AAD
Trim & Molding
Digital white
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Thundercloud Gray
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Thundercloud Gray Room Palettes
Color schemes built around this color — each swatch links to the closest matching paint.
Warm & Inviting
Warm tones with cozy appeal — welcoming and comfortable
Cool & Calm
Cool hues with soft contrast — serene and restful
Bold Contrast
Complementary hues with punch — dynamic and striking
Similar Benjamin Moore Colors
Other Benjamin Moore colors close to Thundercloud Gray.
More gray colors from other brands
Cross-brand colors in the gray family — useful when you want a similar look from a different brand.
Thundercloud Gray — Frequently Asked Questions
What undertone does Thundercloud Gray have?
Thundercloud Gray by Benjamin Moore has a cool (blue) undertone and sits in the gray color family. This is a digital classification, not a prediction of physical paint under every light. Compare samples in your own space.
What colors match Thundercloud Gray from other brands?
The closest cross-brand equivalents to Thundercloud Gray are French Silver by Behr (a close digital match), Silver Lined by Dunn-Edwards (a close digital match), Distant Star by Behr (a close digital match) — the best options for getting Thundercloud Gray's look from a brand your local store carries. Confirm with a physical sample, since sheen and lighting shift the final result.
What is the LRV of Thundercloud Gray?
Thundercloud Gray has a estimated lightness value of 51.0, on a scale where 0 is pure black and 100 is pure white — that makes it a mid-light color — bright enough for living areas yet soft enough for bedrooms, and adaptable across most lighting conditions.
Explore More with Thundercloud Gray
Related Reading
How to Match Paint Colors Across Brands
The science behind Delta E and CIEDE2000 — find a Behr equivalent of any Sherwin-Williams shade, or a Benjamin Moore alternative when your store is out of stock.
Understanding Paint Color Undertones
Why Thundercloud Gray's cool (blue) undertone matters more than its surface color — and how to read undertones in any paint chip.