Comparison

Cornwall Slate vs Majestic Evergreen

Sherwin-Williams SW 9131 and Vista Paint 8392, ΔE 2.81 apart

Sherwin-Williams Cornwall Slate SW 9131 on a wall, hex #949488
Cornwall Slate Sherwin-Williams SW 9131
Vista Paint Majestic Evergreen 8392 on a wall, hex #8C9183
Majestic Evergreen Vista Paint 8392
Zeytin’s verdict · ΔE 2.81Close cousins. Paint a sample of each before you choose.

Sherwin-Williams Cornwall Slate (SW 9131) and Vista Paint Majestic Evergreen (8392) measure a delta-E of 2.81 apart. Cornwall Slate is 2.1 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 6.7 and 8.1. The undertones part company: Cornwall Slate reads as a yellow cast at hue angle 109.4 degrees, Majestic Evergreen as a yellow-green undertone at 123.4. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Majestic Evergreen depth in Sherwin-Williams's line, start from its LRV of 27.0 rather than matching by name.

Is Sherwin-Williams Cornwall Slate the same color as Vista Paint Majestic Evergreen?

Not quite, but close - Sherwin-Williams Cornwall Slate and Vista Paint Majestic Evergreen are delta-E 2.81 apart, close enough that most rooms would not show the difference.

What is the delta-E between Sherwin-Williams Cornwall Slate and Vista Paint Majestic Evergreen?

The measured color distance between Sherwin-Williams Cornwall Slate and Vista Paint Majestic Evergreen is delta-E 2.81.

Which is lighter, Sherwin-Williams Cornwall Slate or Vista Paint Majestic Evergreen?

Sherwin-Williams Cornwall Slate is lighter than Vista Paint Majestic Evergreen by 2.1 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.81 Cornwall Slate and Majestic Evergreen
LIGHTESTCornwall Slate LRV 29.1
DARKESTMajestic Evergreen LRV 27.0
SPREAD2.1LRV points

Side by side

measured values
Cornwall Slate Majestic Evergreen
Brand Sherwin-Williams Vista Paint
Code SW 9131 8392
Hex #949488 #8C9183
Light reflectance 29.1 27.0
Undertone yellow cast yellow-green undertone
Chroma 6.7 8.1
Hue angle 109.4° 123.4°
Color family gray green

Each on its own

full detail