Comparison

Mountain Peak White vs Sugar Dust

Benjamin Moore OC-121 and Vista Paint 0011 — the same color, ΔE 0.35

Benjamin Moore Mountain Peak White OC-121 on a wall, hex #F7F5EB
Mountain Peak White Benjamin Moore OC-121
Vista Paint Sugar Dust 0011 on a wall, hex #F6F4EA
Sugar Dust Vista Paint 0011
Zeytin’s verdict · ΔE 0.35Same color. Buy the cheaper one.

Benjamin Moore Mountain Peak White (OC-121) and Vista Paint Sugar Dust (0011) are the same to within a rounding error color. Both measure LRV 88.6 at chroma 5.1, with a delta-E of 0.35 between them - far below what an eye can see even on a large wall in daylight. Nothing here should decide the purchase: buy on price, on which store is nearer, or on which line has the finish you want. Neither is the better version of the other.

Is Benjamin Moore Mountain Peak White the same color as Vista Paint Sugar Dust?

Yes, by measurement - Benjamin Moore Mountain Peak White and Vista Paint Sugar Dust are only delta-E 0.35 apart, which is below what the human eye can reliably tell apart.

What is the delta-E between Benjamin Moore Mountain Peak White and Vista Paint Sugar Dust?

The measured color distance between Benjamin Moore Mountain Peak White and Vista Paint Sugar Dust is delta-E 0.35.

Which is lighter, Benjamin Moore Mountain Peak White or Vista Paint Sugar Dust?

Vista Paint Sugar Dust is lighter than Benjamin Moore Mountain Peak White by 1.4 points of light reflectance (LRV).

CLOSEST PAIRΔE 0.35 Mountain Peak White and Sugar Dust
LIGHTESTSugar Dust LRV 90.0
DARKESTMountain Peak White LRV 88.6
SPREAD1.4LRV points

Side by side

measured values
Mountain Peak White Sugar Dust
Brand Benjamin Moore Vista Paint
Code OC-121 0011
Hex #F7F5EB #F6F4EA
Light reflectance 88.6 90.0
Undertone yellow cast yellow cast
Chroma 5.1 5.1
Hue angle 101.8° 101.8°
Color family white white

Each on its own

full detail