Comparison

Majestic Mauve vs Smoky Orchid

Benjamin Moore 2115-60 and PPG 1179-2, ΔE 1.05 apart

Benjamin Moore Majestic Mauve 2115-60 on a wall, hex #DED8DA
Majestic Mauve Benjamin Moore 2115-60
PPG Smoky Orchid 1179-2 on a wall, hex #E1D9DC
Smoky Orchid PPG 1179-2
Zeytin’s verdict · ΔE 1.05Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Majestic Mauve (2115-60) and PPG Smoky Orchid (1179-2) measure a delta-E of 1.05 apart. Smoky Orchid is 2.6 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 2.4 and 3.3. The undertones part company: Majestic Mauve reads as a true neutral at hue angle 353.8 degrees, Smoky Orchid as a pink cast at 351.1. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Majestic Mauve depth in PPG's line, start from its LRV of 68.4 rather than matching by name.

Is Benjamin Moore Majestic Mauve the same color as PPG Smoky Orchid?

Not quite, but close - Benjamin Moore Majestic Mauve and PPG Smoky Orchid are delta-E 1.05 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Majestic Mauve and PPG Smoky Orchid?

The measured color distance between Benjamin Moore Majestic Mauve and PPG Smoky Orchid is delta-E 1.05.

Which is lighter, Benjamin Moore Majestic Mauve or PPG Smoky Orchid?

PPG Smoky Orchid is lighter than Benjamin Moore Majestic Mauve by 2.6 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.05 Majestic Mauve and Smoky Orchid
LIGHTESTSmoky Orchid LRV 71.0
DARKESTMajestic Mauve LRV 68.4
SPREAD2.6LRV points

Side by side

measured values
Majestic Mauve Smoky Orchid
Brand Benjamin Moore PPG
Code 2115-60 1179-2
Hex #DED8DA #E1D9DC
Light reflectance 68.4 71.0
Undertone true neutral pink cast
Chroma 2.4 3.3
Hue angle 353.8° 351.1°
Color family gray gray

Each on its own

full detail