Comparison

Hudson Bay vs Blue Moon Bay

Benjamin Moore CC-810 and Vista Paint 7301, ΔE 1.67 apart

Benjamin Moore Hudson Bay CC-810 on a wall, hex #3F5266
Hudson Bay Benjamin Moore CC-810
Vista Paint Blue Moon Bay 7301 on a wall, hex #435466
Blue Moon Bay Vista Paint 7301
Zeytin’s verdict · ΔE 1.67Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Hudson Bay (CC-810) and Vista Paint Blue Moon Bay (7301) measure a delta-E of 1.67 apart. Hudson Bay is 1.8 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 14.1 and 12.7. The undertones part company: Hudson Bay reads as a blue at hue angle 262.8 degrees, Blue Moon Bay as a blue undertone at 262.1. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Blue Moon Bay depth in Benjamin Moore's line, start from its LRV of 8.0 rather than matching by name.

Is Benjamin Moore Hudson Bay the same color as Vista Paint Blue Moon Bay?

Not quite, but close - Benjamin Moore Hudson Bay and Vista Paint Blue Moon Bay are delta-E 1.67 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Hudson Bay and Vista Paint Blue Moon Bay?

The measured color distance between Benjamin Moore Hudson Bay and Vista Paint Blue Moon Bay is delta-E 1.67.

Which is lighter, Benjamin Moore Hudson Bay or Vista Paint Blue Moon Bay?

Benjamin Moore Hudson Bay is lighter than Vista Paint Blue Moon Bay by 1.8 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.67 Hudson Bay and Blue Moon Bay
LIGHTESTHudson Bay LRV 9.8
DARKESTBlue Moon Bay LRV 8.0
SPREAD1.8LRV points

Side by side

measured values
Hudson Bay Blue Moon Bay
Brand Benjamin Moore Vista Paint
Code CC-810 7301
Hex #3F5266 #435466
Light reflectance 9.8 8.0
Undertone blue blue undertone
Chroma 14.1 12.7
Hue angle 262.8° 262.1°
Color family black black

Each on its own

full detail