Keystone Gray HDC-AC-21 is a gray paint color from Behr. It has a hex value of #B7BBB4, LRV 49 and a warm (golden) undertone. Its closest cross-brand match is Light Blue from Farrow & Ball (nearly identical), with 49 more equivalents across other brands.
Ref. #B7BBB4 · HDC-AC-21
Keystone Gray
49%LRV Value
Warm (Golden)Undertone
Keystone Gray Technical Profile
Use this color
Get this color
Some sample and supply links are affiliate links — if you buy through them, Paint Color HQ may earn a small commission at no extra cost to you. It helps keep the site free.
Keystone Gray in Every Brand
The closest equivalent to Keystone Gray in each major paint brand, ranked by how close the match reads. Always verify with a physical sample. How we calculate match accuracy →
BehrKeystone Gray
Nearly identical
Farrow & BallLight Blue
Light Blue
Farrow & Ball
Nearly identical
International Gray
Kilz
Nearly identical
Metal .03
Colorhouse
Nearly identical
Fossilized
Hirshfield's
Nearly identical
Granite Dust
Valspar
Nearly identical
Solstice
PPG
Nearly identical
Half Moon Crest
Benjamin Moore
Nearly identical
Hi Ho Silver
Vista Paint
Nearly identical
Silver Chalice
Dunn-Edwards
Nearly identical
Chelsea Gray
Sherwin-Williams
Nearly identical
Trout Gray
Dutch Boy
Very similar
Comparing these brands? Order peel-and-stick samples of your top matches — Samplize buy 8 peel-and-stick samples, get 2 free.
Recommended Pairings
Colors That Work With Keystone Gray
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Keystone Gray
#B7BBB4
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#85AD88
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Keystone Gray
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Keystone 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 Behr Colors
Other Behr colors close to Keystone 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.
Keystone Gray — Frequently Asked Questions
What undertone does Keystone Gray have?
Keystone Gray by Behr has a warm (golden) 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 Keystone Gray in your own space before committing.
What colors match Keystone Gray from other brands?
The closest cross-brand equivalents to Keystone Gray are Light Blue by Farrow & Ball (a near-identical match), International Gray by Kilz (a near-identical match), Metal .03 by Colorhouse (a near-identical match) — the best options for getting Keystone 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 Keystone Gray?
Keystone Gray has a Light Reflectance Value (LRV) of 48.9, on a scale where 0 is pure black and 100 is pure white — that makes it a mid-depth color with real presence — strong on accent walls, libraries, and rooms with good natural light.
Explore More with Keystone 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 Keystone Gray's warm (golden) undertone matters more than its surface color — and how to read undertones in any paint chip.