Comparison

Summer Night vs Regatta Bay

Dunn-Edwards DE5811 and PPG 1154-7, ΔE 2.33 apart

Dunn-Edwards Summer Night DE5811 on a wall, hex #36576A
Summer Night Dunn-Edwards DE5811
PPG Regatta Bay 1154-7 on a wall, hex #2D5367
Regatta Bay PPG 1154-7
Zeytin’s verdict · ΔE 2.33Close cousins. Paint a sample of each before you choose.

Dunn-Edwards Summer Night (DE5811) and PPG Regatta Bay (1154-7) measure a delta-E of 2.33 apart. They sit within 0.6 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 16 and 17.3. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Regatta Bay depth in Dunn-Edwards's line, start from its LRV of 8.0 rather than matching by name.

Is Dunn-Edwards Summer Night the same color as PPG Regatta Bay?

Not quite, but close - Dunn-Edwards Summer Night and PPG Regatta Bay are delta-E 2.33 apart, close enough that most rooms would not show the difference.

What is the delta-E between Dunn-Edwards Summer Night and PPG Regatta Bay?

The measured color distance between Dunn-Edwards Summer Night and PPG Regatta Bay is delta-E 2.33.

CLOSEST PAIRΔE 2.33 Summer Night and Regatta Bay
LIGHTESTSummer Night LRV 8.6
DARKESTRegatta Bay LRV 8.0
SPREAD0.6LRV points

Side by side

measured values
Summer Night Regatta Bay
Brand Dunn-Edwards PPG
Code DE5811 1154-7
Hex #36576A #2D5367
Light reflectance 8.6 8.0
Undertone blue blue
Chroma 16.0 17.3
Hue angle 246.7° 245.4°
Color family black black

Each on its own

full detail