Comparison

Clam Shell vs Tankard Gray

PPG 1023-6 and Vista Paint H0130, ΔE 1.77 apart

PPG Clam Shell 1023-6 on a wall, hex #827566
Clam Shell PPG 1023-6
Vista Paint Tankard Gray H0130 on a wall, hex #7D7365
Tankard Gray Vista Paint H0130
Zeytin’s verdict · ΔE 1.77Twins, almost. Only daylight on a big wall tells them apart.

PPG Clam Shell (1023-6) and Vista Paint Tankard Gray (H0130) measure a delta-E of 1.77 apart. They sit within 1 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 10.4 and 9.2. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Tankard Gray depth in PPG's line, start from its LRV of 17.0 rather than matching by name.

Is PPG Clam Shell the same color as Vista Paint Tankard Gray?

Not quite, but close - PPG Clam Shell and Vista Paint Tankard Gray are delta-E 1.77 apart, close enough that most rooms would not show the difference.

What is the delta-E between PPG Clam Shell and Vista Paint Tankard Gray?

The measured color distance between PPG Clam Shell and Vista Paint Tankard Gray is delta-E 1.77.

Which is lighter, PPG Clam Shell or Vista Paint Tankard Gray?

PPG Clam Shell is lighter than Vista Paint Tankard Gray by 1 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.77 Clam Shell and Tankard Gray
LIGHTESTClam Shell LRV 18.0
DARKESTTankard Gray LRV 17.0
SPREAD1LRV points

Side by side

measured values
Clam Shell Tankard Gray
Brand PPG Vista Paint
Code 1023-6 H0130
Hex #827566 #7D7365
Light reflectance 18.0 17.0
Undertone yellow undertone yellow undertone
Chroma 10.4 9.2
Hue angle 76.5° 81.5°
Color family tan tan

Each on its own

full detail