Comparison

Summerville Brown vs Royal Crown

Dunn-Edwards DE6139 and Vista Paint 8525, ΔE 2.55 apart

Dunn-Edwards Summerville Brown DE6139 on a wall, hex #997651
Summerville Brown Dunn-Edwards DE6139
Vista Paint Royal Crown 8525 on a wall, hex #977655
Royal Crown Vista Paint 8525
Zeytin’s verdict · ΔE 2.55Close cousins. Paint a sample of each before you choose.

Dunn-Edwards Summerville Brown (DE6139) and Vista Paint Royal Crown (8525) measure a delta-E of 2.55 apart. They sit within 1.3 LRV points of each other, so neither will look brighter than the other on the same wall. Summerville Brown holds more color, chroma 27.1 against 24.6, so it grays out less in dim light. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Royal Crown depth in Dunn-Edwards's line, start from its LRV of 19.0 rather than matching by name.

Is Dunn-Edwards Summerville Brown the same color as Vista Paint Royal Crown?

Not quite, but close - Dunn-Edwards Summerville Brown and Vista Paint Royal Crown are delta-E 2.55 apart, close enough that most rooms would not show the difference.

What is the delta-E between Dunn-Edwards Summerville Brown and Vista Paint Royal Crown?

The measured color distance between Dunn-Edwards Summerville Brown and Vista Paint Royal Crown is delta-E 2.55.

Which is lighter, Dunn-Edwards Summerville Brown or Vista Paint Royal Crown?

Dunn-Edwards Summerville Brown is lighter than Vista Paint Royal Crown by 1.3 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.55 Summerville Brown and Royal Crown
LIGHTESTSummerville Brown LRV 20.3
DARKESTRoyal Crown LRV 19.0
SPREAD1.3LRV points

Side by side

measured values
Summerville Brown Royal Crown
Brand Dunn-Edwards Vista Paint
Code DE6139 8525
Hex #997651 #977655
Light reflectance 20.3 19.0
Undertone orange orange
Chroma 27.1 24.6
Hue angle 71.1° 70.1°
Color family orange tan

Each on its own

full detail