Comparison

Breath of Fresh Air vs Moonmist

Benjamin Moore 806 and Sherwin-Williams SW 9144, ΔE 1.83 apart

Benjamin Moore Breath of Fresh Air 806 on a wall, hex #C9DDE5
Breath of Fresh Air Benjamin Moore 806
Sherwin-Williams Moonmist SW 9144 on a wall, hex #C9D9E0
Moonmist Sherwin-Williams SW 9144
Zeytin’s verdict · ΔE 1.83Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Breath of Fresh Air (806) and Sherwin-Williams Moonmist (SW 9144) measure a delta-E of 1.83 apart. They sit within 1.4 LRV points of each other, so neither will look brighter than the other on the same wall. Both carry a similar amount of color, at chroma 8 and 6.6. The undertones part company: Breath of Fresh Air reads as a blue undertone at hue angle 230.7 degrees, Moonmist as a cool blue-gray at 233.0. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Moonmist depth in Benjamin Moore's line, start from its LRV of 67.7 rather than matching by name.

Is Benjamin Moore Breath of Fresh Air the same color as Sherwin-Williams Moonmist?

Not quite, but close - Benjamin Moore Breath of Fresh Air and Sherwin-Williams Moonmist are delta-E 1.83 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Breath of Fresh Air and Sherwin-Williams Moonmist?

The measured color distance between Benjamin Moore Breath of Fresh Air and Sherwin-Williams Moonmist is delta-E 1.83.

Which is lighter, Benjamin Moore Breath of Fresh Air or Sherwin-Williams Moonmist?

Benjamin Moore Breath of Fresh Air is lighter than Sherwin-Williams Moonmist by 1.4 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.83 Breath of Fresh Air and Moonmist
LIGHTESTBreath of Fresh Air LRV 69.1
DARKESTMoonmist LRV 67.7
SPREAD1.4LRV points

Side by side

measured values
Breath of Fresh Air Moonmist
Brand Benjamin Moore Sherwin-Williams
Code 806 SW 9144
Hex #C9DDE5 #C9D9E0
Light reflectance 69.1 67.7
Undertone blue undertone cool blue-gray
Chroma 8.0 6.6
Hue angle 230.7° 233.0°
Color family teal gray

Each on its own

full detail