Comparison

Hypnotic Sea vs Great Blue Green

PPG 1234-7 and Vista Paint AC149, ΔE 1.92 apart

PPG Hypnotic Sea 1234-7 on a wall, hex #00787F
Hypnotic Sea PPG 1234-7
Vista Paint Great Blue Green AC149 on a wall, hex #007882
Great Blue Green Vista Paint AC149
Zeytin’s verdict · ΔE 1.92Twins, almost. Only daylight on a big wall tells them apart.

PPG Hypnotic Sea (1234-7) and Vista Paint Great Blue Green (AC149) measure a delta-E of 1.92 apart. They sit within 0 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 27.9 and 27.7. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Hypnotic Sea depth in Vista Paint's line, start from its LRV of 15.0 rather than matching by name.

Is PPG Hypnotic Sea the same color as Vista Paint Great Blue Green?

Not quite, but close - PPG Hypnotic Sea and Vista Paint Great Blue Green are delta-E 1.92 apart, close enough that most rooms would not show the difference.

What is the delta-E between PPG Hypnotic Sea and Vista Paint Great Blue Green?

The measured color distance between PPG Hypnotic Sea and Vista Paint Great Blue Green is delta-E 1.92.

CLOSEST PAIRΔE 1.92 Hypnotic Sea and Great Blue Green
LIGHTESTHypnotic Sea LRV 15.0
DARKESTHypnotic Sea LRV 15.0
SPREAD0LRV points

Side by side

measured values
Hypnotic Sea Great Blue Green
Brand PPG Vista Paint
Code 1234-7 AC149
Hex #00787F #007882
Light reflectance 15.0 15.0
Undertone teal teal
Chroma 27.9 27.7
Hue angle 205.3° 209.2°
Color family teal teal

Each on its own

full detail