Comparison

Gray Mountain vs Bank Vault

Benjamin Moore 1462 and Dunn-Edwards DE6383, ΔE 2.37 apart

Benjamin Moore Gray Mountain 1462 on a wall, hex #797271
Gray Mountain Benjamin Moore 1462
Dunn-Edwards Bank Vault DE6383 on a wall, hex #757374
Bank Vault Dunn-Edwards DE6383
Zeytin’s verdict · ΔE 2.37Close cousins. Paint a sample of each before you choose.

Benjamin Moore Gray Mountain (1462) and Dunn-Edwards Bank Vault (DE6383) measure a delta-E of 2.37 apart. They sit within 0 LRV points of each other, so neither will look brighter than the other on the same wall. Both carry a similar amount of color, at chroma 2.9 and 1. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Gray Mountain depth in Dunn-Edwards's line, start from its LRV of 17.3 rather than matching by name.

Is Benjamin Moore Gray Mountain the same color as Dunn-Edwards Bank Vault?

Not quite, but close - Benjamin Moore Gray Mountain and Dunn-Edwards Bank Vault are delta-E 2.37 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Gray Mountain and Dunn-Edwards Bank Vault?

The measured color distance between Benjamin Moore Gray Mountain and Dunn-Edwards Bank Vault is delta-E 2.37.

CLOSEST PAIRΔE 2.37 Gray Mountain and Bank Vault
LIGHTESTGray Mountain LRV 17.3
DARKESTGray Mountain LRV 17.3
SPREAD0LRV points

Side by side

measured values
Gray Mountain Bank Vault
Brand Benjamin Moore Dunn-Edwards
Code 1462 DE6383
Hex #797271 #757374
Light reflectance 17.3 17.3
Undertone true neutral true neutral
Chroma 2.9 1.0
Hue angle 31.0° 343.4°
Color family gray gray

Each on its own

full detail