Thundercloud Gray 2124-40 is a gray paint color from Benjamin Moore. It has a hex value of #B9BEC1, 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.
Ref. #B9BEC1 · 2124-40
Thundercloud Gray
51%LRV Value
Cool (Blue)Undertone
Thundercloud Gray Technical Profile
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Thundercloud Gray in Every Brand
The closest equivalent to Thundercloud Gray in each major paint brand, ranked by how close the match reads. Always verify with a physical sample. How we calculate match accuracy →
Benjamin MooreThundercloud Gray
Nearly identical
BehrFrench Silver
French Silver
Behr
Nearly identical
Silver Lined
Dunn-Edwards
Nearly identical
Platinum Ring
Kilz
Nearly identical
Gray Frost
PPG
Nearly identical
Elephant Trunk
Dutch Boy
Nearly identical
Lazy Gray
Sherwin-Williams
Nearly identical
Voyage
Valspar
Nearly identical
Marseilles
Hirshfield's
Nearly identical
Prairie Smoke
Vista Paint
Very similar
Agate Grey
RAL
Very similar
Parma Gray
Farrow & Ball
Very similar
Wool .02
Colorhouse
Visible 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.
Recommended Pairings
Colors That Work With Thundercloud Gray
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
Pure 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. The undertone shifts with light — warmer under 2700K bulbs, cleaner and cooler under 4000K daylight — so sample Thundercloud Gray in your own space before committing.
What colors match Thundercloud Gray from other brands?
The closest cross-brand equivalents to Thundercloud Gray are French Silver by Behr (a near-identical match), Silver Lined by Dunn-Edwards (a near-identical match), Distant Star by Behr (a near-identical 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 Light Reflectance Value (LRV) 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.