Comparison

Pueblo Brown vs Emperor's Robe

Benjamin Moore 2102-30 and Vista Paint 0074, ΔE 1.48 apart

Benjamin Moore Pueblo Brown 2102-30 on a wall, hex #7F554B
Pueblo Brown Benjamin Moore 2102-30
Vista Paint Emperor's Robe 0074 on a wall, hex #7F534B
Emperor's Robe Vista Paint 0074
Zeytin’s verdict · ΔE 1.48Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Pueblo Brown (2102-30) and Vista Paint Emperor's Robe (0074) measure a delta-E of 1.48 apart. Pueblo Brown is 1.9 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 20.7 and 21.2. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Emperor's Robe depth in Benjamin Moore's line, start from its LRV of 11.0 rather than matching by name.

Is Benjamin Moore Pueblo Brown the same color as Vista Paint Emperor's Robe?

Not quite, but close - Benjamin Moore Pueblo Brown and Vista Paint Emperor's Robe are delta-E 1.48 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Pueblo Brown and Vista Paint Emperor's Robe?

The measured color distance between Benjamin Moore Pueblo Brown and Vista Paint Emperor's Robe is delta-E 1.48.

Which is lighter, Benjamin Moore Pueblo Brown or Vista Paint Emperor's Robe?

Benjamin Moore Pueblo Brown is lighter than Vista Paint Emperor's Robe by 1.9 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.48 Pueblo Brown and Emperor's Robe
LIGHTESTPueblo Brown LRV 12.9
DARKESTEmperor's Robe LRV 11.0
SPREAD1.9LRV points

Side by side

measured values
Pueblo Brown Emperor's Robe
Brand Benjamin Moore Vista Paint
Code 2102-30 0074
Hex #7F554B #7F534B
Light reflectance 12.9 11.0
Undertone red red
Chroma 20.7 21.2
Hue angle 38.7° 35.2°
Color family red red

Each on its own

full detail