Comparison

Chocolate Chunk vs Bistro Brown

Dunn-Edwards DE6070 and Vista Paint 8645, ΔE 2.97 apart

Dunn-Edwards Chocolate Chunk DE6070 on a wall, hex #6B574A
Chocolate Chunk Dunn-Edwards DE6070
Vista Paint Bistro Brown 8645 on a wall, hex #6F554A
Bistro Brown Vista Paint 8645
Zeytin’s verdict · ΔE 2.97Close cousins. Paint a sample of each before you choose.

Dunn-Edwards Chocolate Chunk (DE6070) and Vista Paint Bistro Brown (8645) measure a delta-E of 2.97 apart. They sit within 1.4 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 12.3 and 13.9. The undertones part company: Chocolate Chunk reads as a orange undertone at hue angle 60.3 degrees, Bistro Brown as a red undertone at 49.4. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Bistro Brown depth in Dunn-Edwards's line, start from its LRV of 9.0 rather than matching by name.

Is Dunn-Edwards Chocolate Chunk the same color as Vista Paint Bistro Brown?

Not quite, but close - Dunn-Edwards Chocolate Chunk and Vista Paint Bistro Brown are delta-E 2.97 apart, close enough that most rooms would not show the difference.

What is the delta-E between Dunn-Edwards Chocolate Chunk and Vista Paint Bistro Brown?

The measured color distance between Dunn-Edwards Chocolate Chunk and Vista Paint Bistro Brown is delta-E 2.97.

Which is lighter, Dunn-Edwards Chocolate Chunk or Vista Paint Bistro Brown?

Dunn-Edwards Chocolate Chunk is lighter than Vista Paint Bistro Brown by 1.4 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.97 Chocolate Chunk and Bistro Brown
LIGHTESTChocolate Chunk LRV 10.4
DARKESTBistro Brown LRV 9.0
SPREAD1.4LRV points

Side by side

measured values
Chocolate Chunk Bistro Brown
Brand Dunn-Edwards Vista Paint
Code DE6070 8645
Hex #6B574A #6F554A
Light reflectance 10.4 9.0
Undertone orange undertone red undertone
Chroma 12.3 13.9
Hue angle 60.3° 49.4°
Color family black black

Each on its own

full detail