Comparison

Plunge Pool vs Cast Iron

PPG 1029-7 and Sherwin-Williams SW 6202, ΔE 1.86 apart

PPG Plunge Pool 1029-7 on a wall, hex #656457
Plunge Pool PPG 1029-7
Sherwin-Williams Cast Iron SW 6202 on a wall, hex #64645A
Cast Iron Sherwin-Williams SW 6202
Zeytin’s verdict · ΔE 1.86Twins, almost. Only daylight on a big wall tells them apart.

PPG Plunge Pool (1029-7) and Sherwin-Williams Cast Iron (SW 6202) measure a delta-E of 1.86 apart. They sit within 0.5 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 7.8 and 6. The undertones part company: Plunge Pool reads as a yellow undertone at hue angle 105.8 degrees, Cast Iron as a yellow cast at 109.2. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Cast Iron depth in PPG's line, start from its LRV of 12.5 rather than matching by name.

Is PPG Plunge Pool the same color as Sherwin-Williams Cast Iron?

Not quite, but close - PPG Plunge Pool and Sherwin-Williams Cast Iron are delta-E 1.86 apart, close enough that most rooms would not show the difference.

What is the delta-E between PPG Plunge Pool and Sherwin-Williams Cast Iron?

The measured color distance between PPG Plunge Pool and Sherwin-Williams Cast Iron is delta-E 1.86.

CLOSEST PAIRΔE 1.86 Plunge Pool and Cast Iron
LIGHTESTPlunge Pool LRV 13.0
DARKESTCast Iron LRV 12.5
SPREAD0.5LRV points

Side by side

measured values
Plunge Pool Cast Iron
Brand PPG Sherwin-Williams
Code 1029-7 SW 6202
Hex #656457 #64645A
Light reflectance 13.0 12.5
Undertone yellow undertone yellow cast
Chroma 7.8 6.0
Hue angle 105.8° 109.2°
Color family yellow gray

Each on its own

full detail