Comparison

Green Mirror vs London Fog

Dunn-Edwards DEC784 and Vista Paint 8371, ΔE 2.28 apart

Dunn-Edwards Green Mirror DEC784 on a wall, hex #D7E2D5
Green Mirror Dunn-Edwards DEC784
Vista Paint London Fog 8371 on a wall, hex #D6DDD2
London Fog Vista Paint 8371
Zeytin’s verdict · ΔE 2.28Close cousins. Paint a sample of each before you choose.

Dunn-Edwards Green Mirror (DEC784) and Vista Paint London Fog (8371) measure a delta-E of 2.28 apart. Green Mirror is 5.6 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 7.9 and 6.3. The undertones part company: Green Mirror reads as a yellow-green undertone at hue angle 139.9 degrees, London Fog as a yellow-green cast at 133.5. Close, but a large sample of each will show the gap, particularly against white trim. If you need the London Fog depth in Dunn-Edwards's line, start from its LRV of 68.0 rather than matching by name.

Is Dunn-Edwards Green Mirror the same color as Vista Paint London Fog?

Not quite, but close - Dunn-Edwards Green Mirror and Vista Paint London Fog are delta-E 2.28 apart, close enough that most rooms would not show the difference.

What is the delta-E between Dunn-Edwards Green Mirror and Vista Paint London Fog?

The measured color distance between Dunn-Edwards Green Mirror and Vista Paint London Fog is delta-E 2.28.

Which is lighter, Dunn-Edwards Green Mirror or Vista Paint London Fog?

Dunn-Edwards Green Mirror is lighter than Vista Paint London Fog by 5.6 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.28 Green Mirror and London Fog
LIGHTESTGreen Mirror LRV 73.6
DARKESTLondon Fog LRV 68.0
SPREAD5.6LRV points

Side by side

measured values
Green Mirror London Fog
Brand Dunn-Edwards Vista Paint
Code DEC784 8371
Hex #D7E2D5 #D6DDD2
Light reflectance 73.6 68.0
Undertone yellow-green undertone yellow-green cast
Chroma 7.9 6.3
Hue angle 139.9° 133.5°
Color family green gray

Each on its own

full detail