Comparison

Pre-Dawn Sky vs Plum Passion

Benjamin Moore 2075-30 and Dunn-Edwards DE5006, ΔE 2.93 apart

Benjamin Moore Pre-Dawn Sky 2075-30 on a wall, hex #9F487D
Pre-Dawn Sky Benjamin Moore 2075-30
Dunn-Edwards Plum Passion DE5006 on a wall, hex #9B4B80
Plum Passion Dunn-Edwards DE5006
Zeytin’s verdict · ΔE 2.93Close cousins. Paint a sample of each before you choose.

Benjamin Moore Pre-Dawn Sky (2075-30) and Dunn-Edwards Plum Passion (DE5006) measure a delta-E of 2.93 apart. Pre-Dawn Sky is 1.8 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 44.5 and 42.7. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Plum Passion depth in Benjamin Moore's line, start from its LRV of 13.6 rather than matching by name.

Is Benjamin Moore Pre-Dawn Sky the same color as Dunn-Edwards Plum Passion?

Not quite, but close - Benjamin Moore Pre-Dawn Sky and Dunn-Edwards Plum Passion are delta-E 2.93 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Pre-Dawn Sky and Dunn-Edwards Plum Passion?

The measured color distance between Benjamin Moore Pre-Dawn Sky and Dunn-Edwards Plum Passion is delta-E 2.93.

Which is lighter, Benjamin Moore Pre-Dawn Sky or Dunn-Edwards Plum Passion?

Benjamin Moore Pre-Dawn Sky is lighter than Dunn-Edwards Plum Passion by 1.8 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.93 Pre-Dawn Sky and Plum Passion
LIGHTESTPre-Dawn Sky LRV 15.4
DARKESTPlum Passion LRV 13.6
SPREAD1.8LRV points

Side by side

measured values
Pre-Dawn Sky Plum Passion
Brand Benjamin Moore Dunn-Edwards
Code 2075-30 DE5006
Hex #9F487D #9B4B80
Light reflectance 15.4 13.6
Undertone purple purple
Chroma 44.5 42.7
Hue angle 343.2° 340.0°
Color family pink pink

Each on its own

full detail