Comparison

Norwich Brown vs Brown Mountain

Benjamin Moore HC-19 and Vista Paint 8501, ΔE 4.82 apart

Benjamin Moore Norwich Brown HC-19 on a wall, hex #95805D
Norwich Brown Benjamin Moore HC-19
Vista Paint Brown Mountain 8501 on a wall, hex #977C53
Brown Mountain Vista Paint 8501
Zeytin’s verdict · ΔE 4.82Related, but your eyes will notice. These are different choices.

Benjamin Moore Norwich Brown (HC-19) and Vista Paint Brown Mountain (8501) measure a delta-E of 4.82 apart. Norwich Brown is 2.6 LRV points lighter, which is the difference you notice first. Brown Mountain holds more color, chroma 26.7 against 22.2, so it grays out less in dim light. These read as related but distinct. Sample both before committing. If you need the Brown Mountain depth in Benjamin Moore's line, start from its LRV of 20.0 rather than matching by name.

What is the difference between Benjamin Moore Norwich Brown and Vista Paint Brown Mountain?

Benjamin Moore Norwich Brown and Vista Paint Brown Mountain are delta-E 4.82 apart - a difference that shows up on a wall, not just side by side on two chips.

What is the delta-E between Benjamin Moore Norwich Brown and Vista Paint Brown Mountain?

The measured color distance between Benjamin Moore Norwich Brown and Vista Paint Brown Mountain is delta-E 4.82.

Which is lighter, Benjamin Moore Norwich Brown or Vista Paint Brown Mountain?

Benjamin Moore Norwich Brown is lighter than Vista Paint Brown Mountain by 2.6 points of light reflectance (LRV).

Which is more saturated, Benjamin Moore Norwich Brown or Vista Paint Brown Mountain?

Vista Paint Brown Mountain carries more color than Benjamin Moore Norwich Brown - a higher chroma value means a more intense, less grey color.

CLOSEST PAIRΔE 4.82 Norwich Brown and Brown Mountain
LIGHTESTNorwich Brown LRV 22.6
DARKESTBrown Mountain LRV 20.0
SPREAD2.6LRV points

Side by side

measured values
Norwich Brown Brown Mountain
Brand Benjamin Moore Vista Paint
Code HC-19 8501
Hex #95805D #977C53
Light reflectance 22.6 20.0
Undertone yellow yellow
Chroma 22.2 26.7
Hue angle 82.8° 79.8°
Color family tan orange

Each on its own

full detail