Comparison

Metropolis vs Mole's Breath

Benjamin Moore CC-546 and Farrow & Ball 276, ΔE 2.39 apart

Benjamin Moore Metropolis CC-546 on a wall, hex #8B847C
Metropolis Benjamin Moore CC-546
Farrow & Ball Mole's Breath 276 on a wall, hex #87847F
Mole's Breath Farrow & Ball 276
Zeytin’s verdict · ΔE 2.39Close cousins. Paint a sample of each before you choose.

Benjamin Moore Metropolis (CC-546) and Farrow & Ball Mole's Breath (276) measure a delta-E of 2.39 apart. They sit within 1.3 LRV points of each other, so neither will look brighter than the other on the same wall. Metropolis holds more color, chroma 5.4 against 3.1, so it grays out less in dim light. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Mole's Breath depth in Benjamin Moore's line, start from its LRV of 23.2 rather than matching by name.

Is Benjamin Moore Metropolis the same color as Farrow & Ball Mole's Breath?

Not quite, but close - Benjamin Moore Metropolis and Farrow & Ball Mole's Breath are delta-E 2.39 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Metropolis and Farrow & Ball Mole's Breath?

The measured color distance between Benjamin Moore Metropolis and Farrow & Ball Mole's Breath is delta-E 2.39.

Which is lighter, Benjamin Moore Metropolis or Farrow & Ball Mole's Breath?

Benjamin Moore Metropolis is lighter than Farrow & Ball Mole's Breath by 1.3 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.39 Metropolis and Mole's Breath
LIGHTESTMetropolis LRV 24.5
DARKESTMole's Breath LRV 23.2
SPREAD1.3LRV points

Side by side

measured values
Metropolis Mole's Breath
Brand Benjamin Moore Farrow & Ball
Code CC-546 276
Hex #8B847C #87847F
Light reflectance 24.5 23.2
Undertone yellow cast yellow cast
Chroma 5.4 3.1
Hue angle 77.5° 86.9°
Color family gray gray

Each on its own

full detail