Comparison

Gloucester Sage vs Mouse's Back

Benjamin Moore HC-100 and Farrow & Ball 40, ΔE 8.62 apart

Benjamin Moore Gloucester Sage HC-100 on a wall, hex #7B7665
Gloucester Sage Benjamin Moore HC-100
Farrow & Ball Mouse's Back 40 on a wall, hex #958975
Mouse's Back Farrow & Ball 40
Zeytin’s verdict · ΔE 8.62Not even close. Pick the one you actually want.

Benjamin Moore Gloucester Sage (HC-100) and Farrow & Ball Mouse's Back (40) measure a delta-E of 8.62 apart. Mouse's Back is 6.3 LRV points lighter, which is the difference you notice first. Mouse's Back holds more color, chroma 12.4 against 10.1, so it grays out less in dim light. These read as related but distinct. Sample both before committing. If you need the Gloucester Sage depth in Farrow & Ball's line, start from its LRV of 19.3 rather than matching by name.

What is the difference between Benjamin Moore Gloucester Sage and Farrow & Ball Mouse's Back?

Benjamin Moore Gloucester Sage and Farrow & Ball Mouse's Back are delta-E 8.62 apart - a difference that shows up on a wall, not just side by side on two chips.

What is the delta-E between Benjamin Moore Gloucester Sage and Farrow & Ball Mouse's Back?

The measured color distance between Benjamin Moore Gloucester Sage and Farrow & Ball Mouse's Back is delta-E 8.62.

Which is lighter, Benjamin Moore Gloucester Sage or Farrow & Ball Mouse's Back?

Farrow & Ball Mouse's Back is lighter than Benjamin Moore Gloucester Sage by 6.3 points of light reflectance (LRV).

CLOSEST PAIRΔE 8.62 Gloucester Sage and Mouse's Back
LIGHTESTMouse's Back LRV 25.6
DARKESTGloucester Sage LRV 19.3
SPREAD6.3LRV points

Side by side

measured values
Gloucester Sage Mouse's Back
Brand Benjamin Moore Farrow & Ball
Code HC-100 40
Hex #7B7665 #958975
Light reflectance 19.3 25.6
Undertone yellow undertone yellow undertone
Chroma 10.1 12.4
Hue angle 96.7° 84.9°
Color family tan tan

Each on its own

full detail