Is Valspar Warm Putty a good dupe for Farrow & Ball Purbeck Stone?

Yes! Valspar Warm Putty has a 98.3% scientific visual match to Farrow & Ball Purbeck Stone with a CIEDE2000 color difference (ΔE) of only 0.77. On walls, the difference is virtually imperceptible under standard residential lighting.

How much do you save using Warm Putty instead of Purbeck Stone?

Farrow & Ball Purbeck Stone retails at ~$145/gal, whereas Valspar Warm Putty costs ~$44/gal. You save $101 per gallon (70% discount), or approximately $808 on an average whole-house painting project.

Head-to-Head Dupe Analysis98.3% Match SimilaritySave $101 / Gallon

Farrow & Ball Purbeck Stone
vs Valspar Warm Putty

Looking for a cheap equivalent to Purbeck Stone (No. 275)? Here is the scientific comparison, spectrophotometric ΔE score, and exact formula to get this mixed at Lowe's.

⚖️ Side-by-Side Visual Comparison

Notice how the human eye perceives both shades under identical D65 daylight.

ΔE: 0.77

Original (luxury)$145/gal

Purbeck Stone

Farrow & Ball (No. 275)

HEX: #B8B3A8 • LRV: 48

Budget Dupe (budget)$44/gal

Warm Putty

Valspar (6006-1A)

HEX: #B7B1A5 • LRV: 47

🎯 Editorial Verdict:"Flawless Match (Undetectable difference on wall)"

Light Reflectance difference is only 1%. Once painted across an entire room, natural light bounce creates identical atmosphere.

Cost Difference

Save $101/gal (70%)

Technical Specification Comparison

Objective measurements recorded under standard CIE D65 illuminant.

Metric	Farrow & Ball Purbeck Stone	Valspar Warm Putty	Difference / Notes
Hexadecimal Code	#B8B3A8	#B7B1A5	ΔE 0.77
sRGB Coordinates	184, 179, 168	183, 177, 165	Near-parallel chromaticity
LRV (Light Reflectance)	48%	47%	Only 1% variance
Dominant Undertones	Dorset Stone, Clean Greige, Earthy Gray	Stone Greige, Earthy Putty, Dorset Grey	Complementary tones
Price Per Gallon (MSRP)	$145	$44	Save $101/gal
Whole House Cost (10 gal)	$1450	$440	Save $1010 Total!

🛒 How to Order this Dupe at Lowe's

Copy and present this exact prompt to the paint counter technician.

"Hi, I would like 1 gallon of Valspar Marquee/Premium tinted to Warm Putty (6006-1A). This is a verified match for Farrow & Ball Purbeck Stone (No. 275)."