Stone Cold TB-66 is a gray paint color from Kilz. It has a hex value of #9CA39D, estimated LRV 36 and a cool (green) undertone. Its closest cross-brand match is Sage Gray from Behr (nearly identical), with 49 more equivalents across other brands.
Kilz · #9CA39D · TB-66
Stone Cold
36%Estimated LRV
Cool (Green)Undertone
Stone Cold Technical Profile
HEX Code#9CA39D
RGB156, 163, 157
Estimated LRV35.7
UndertoneCool (Green)
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
BrandKilz
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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 Stone Cold
Digital candidates from other paint brands, ranked by color similarity. Always verify with a physical sample. How we calculate match accuracy →
Sage Gray
Behr
#9EA49F
Close digital match
Seafoam Storm
Valspar
#989F98
Close digital match
Cannon Ball
Hirshfield's
#99A098
Close digital match
Puritan Gray
Benjamin Moore
#98A09C
Close digital match
Pussy Willow
Vista Paint
#9B9F99
Close digital match
Casting Shadow
Dunn-Edwards
#9DA7A0
Close digital match
Steel Curtain
PPG
#9B9F9A
Close digital match
Unusual Gray
Sherwin-Williams
#A3A7A0
Close digital match
Antiquated Pewter
Dutch Boy
#99A096
Similar digital color
Metal .04
Colorhouse
#9FA198
Similar digital color
Signal Grey
RAL
#969992
Similar digital color
Pigeon
Farrow & Ball
#A1A093
Similar digital color
Comparing these brands? Order peel-and-stick samples of your top matches — Samplize buy 8 peel-and-stick samples, get 2 free.
Generated palette previews
Colors That Work With Stone Cold
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
Stone Cold
#9CA39D
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#85AD9F
Trim & Molding
Digital white
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Stone Cold
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Stone Cold 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 Kilz Colors
Other Kilz colors close to Stone Cold.
More gray colors from other brands
Cross-brand colors in the gray family — useful when you want a similar look from a different brand.
Stone Cold — Frequently Asked Questions
What undertone does Stone Cold have?
Stone Cold by Kilz has a cool (green) 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 Stone Cold from other brands?
The closest cross-brand equivalents to Stone Cold are Sage Gray by Behr (a close digital match), Seafoam Storm by Valspar (a close digital match), Cannon Ball by Hirshfield's (a close digital match) — the best options for getting Stone Cold'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 Stone Cold?
Stone Cold has a estimated lightness value of 35.7, 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 Stone Cold
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 Stone Cold's cool (green) undertone matters more than its surface color — and how to read undertones in any paint chip.