Comparison

In the Midnight Hour vs Nightfall

Benjamin Moore 1666 and Dunn-Edwards DE5804, ΔE 2.24 apart

Benjamin Moore In the Midnight Hour 1666 on a wall, hex #415663
In the Midnight Hour Benjamin Moore 1666
Dunn-Edwards Nightfall DE5804 on a wall, hex #43535E
Nightfall Dunn-Edwards DE5804
Zeytin’s verdict · ΔE 2.24Close cousins. Paint a sample of each before you choose.

Benjamin Moore In the Midnight Hour (1666) and Dunn-Edwards Nightfall (DE5804) measure a delta-E of 2.24 apart. In the Midnight Hour is 2 LRV points lighter, which is the difference you notice first. In the Midnight Hour holds more color, chroma 11.1 against 9.1, 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 Nightfall depth in Benjamin Moore's line, start from its LRV of 8.2 rather than matching by name.

Is Benjamin Moore In the Midnight Hour the same color as Dunn-Edwards Nightfall?

Not quite, but close - Benjamin Moore In the Midnight Hour and Dunn-Edwards Nightfall are delta-E 2.24 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore In the Midnight Hour and Dunn-Edwards Nightfall?

The measured color distance between Benjamin Moore In the Midnight Hour and Dunn-Edwards Nightfall is delta-E 2.24.

Which is lighter, Benjamin Moore In the Midnight Hour or Dunn-Edwards Nightfall?

Benjamin Moore In the Midnight Hour is lighter than Dunn-Edwards Nightfall by 2 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.24 In the Midnight Hour and Nightfall
LIGHTESTIn the Midnight Hour LRV 10.2
DARKESTNightfall LRV 8.2
SPREAD2LRV points

Side by side

measured values
In the Midnight Hour Nightfall
Brand Benjamin Moore Dunn-Edwards
Code 1666 DE5804
Hex #415663 #43535E
Light reflectance 10.2 8.2
Undertone blue undertone blue undertone
Chroma 11.1 9.1
Hue angle 246.1° 248.4°
Color family black black

Each on its own

full detail