Comparison

Topsail vs Moonlight Blue

Sherwin-Williams SW 6217 and Vista Paint 8268, ΔE 0.78 apart

Sherwin-Williams Topsail SW 6217 on a wall, hex #DAE2E0
Topsail Sherwin-Williams SW 6217
Vista Paint Moonlight Blue 8268 on a wall, hex #DCE3E2
Moonlight Blue Vista Paint 8268
Zeytin’s verdict · ΔE 0.78Same color. Buy the cheaper one.

Sherwin-Williams Topsail (SW 6217) and Vista Paint Moonlight Blue (8268) measure a delta-E of 0.78 apart. They sit within 0.9 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 3 and 2.5. The undertones part company: Topsail reads as a green cast at hue angle 179.4 degrees, Moonlight Blue as a cool teal-gray at 187.7. Side by side on a wall these are effectively the same color. Choose on price and availability rather than appearance. If you need the Moonlight Blue depth in Sherwin-Williams's line, start from its LRV of 74.0 rather than matching by name.

Is Sherwin-Williams Topsail the same color as Vista Paint Moonlight Blue?

Yes, by measurement - Sherwin-Williams Topsail and Vista Paint Moonlight Blue are only delta-E 0.78 apart, which is below what the human eye can reliably tell apart.

What is the delta-E between Sherwin-Williams Topsail and Vista Paint Moonlight Blue?

The measured color distance between Sherwin-Williams Topsail and Vista Paint Moonlight Blue is delta-E 0.78.

CLOSEST PAIRΔE 0.78 Topsail and Moonlight Blue
LIGHTESTTopsail LRV 74.9
DARKESTMoonlight Blue LRV 74.0
SPREAD0.9LRV points

Side by side

measured values
Topsail Moonlight Blue
Brand Sherwin-Williams Vista Paint
Code SW 6217 8268
Hex #DAE2E0 #DCE3E2
Light reflectance 74.9 74.0
Undertone green cast cool teal-gray
Chroma 3.0 2.5
Hue angle 179.4° 187.7°
Color family gray gray

Each on its own

full detail