Comparison

Oak Buff vs Dune Walk

PPG 1083-3 and Vista Paint 8571, ΔE 1.23 apart

PPG Oak Buff 1083-3 on a wall, hex #EED8C2
Oak Buff PPG 1083-3
Vista Paint Dune Walk 8571 on a wall, hex #ECD5BE
Dune Walk Vista Paint 8571
Zeytin’s verdict · ΔE 1.23Twins, almost. Only daylight on a big wall tells them apart.

PPG Oak Buff (1083-3) and Vista Paint Dune Walk (8571) measure a delta-E of 1.23 apart. Oak Buff is 3 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 14.2 and 14.9. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Dune Walk depth in PPG's line, start from its LRV of 66.0 rather than matching by name.

Is PPG Oak Buff the same color as Vista Paint Dune Walk?

Not quite, but close - PPG Oak Buff and Vista Paint Dune Walk are delta-E 1.23 apart, close enough that most rooms would not show the difference.

What is the delta-E between PPG Oak Buff and Vista Paint Dune Walk?

The measured color distance between PPG Oak Buff and Vista Paint Dune Walk is delta-E 1.23.

Which is lighter, PPG Oak Buff or Vista Paint Dune Walk?

PPG Oak Buff is lighter than Vista Paint Dune Walk by 3 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.23 Oak Buff and Dune Walk
LIGHTESTOak Buff LRV 69.0
DARKESTDune Walk LRV 66.0
SPREAD3LRV points

Side by side

measured values
Oak Buff Dune Walk
Brand PPG Vista Paint
Code 1083-3 8571
Hex #EED8C2 #ECD5BE
Light reflectance 69.0 66.0
Undertone yellow yellow
Chroma 14.2 14.9
Hue angle 73.1° 73.0°
Color family tan tan

Each on its own

full detail