Comparison

Green Onyx vs Whispering Willow

Sherwin-Williams SW 9128 and Vista Paint H0082, ΔE 2.57 apart

Sherwin-Williams Green Onyx SW 9128 on a wall, hex #989A82
Green Onyx Sherwin-Williams SW 9128
Vista Paint Whispering Willow H0082 on a wall, hex #909780
Whispering Willow Vista Paint H0082
Zeytin’s verdict · ΔE 2.57Close cousins. Paint a sample of each before you choose.

Sherwin-Williams Green Onyx (SW 9128) and Vista Paint Whispering Willow (H0082) measure a delta-E of 2.57 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 13.4 and 13.2. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Whispering Willow depth in Sherwin-Williams's line, start from its LRV of 30.0 rather than matching by name.

Is Sherwin-Williams Green Onyx the same color as Vista Paint Whispering Willow?

Not quite, but close - Sherwin-Williams Green Onyx and Vista Paint Whispering Willow are delta-E 2.57 apart, close enough that most rooms would not show the difference.

What is the delta-E between Sherwin-Williams Green Onyx and Vista Paint Whispering Willow?

The measured color distance between Sherwin-Williams Green Onyx and Vista Paint Whispering Willow is delta-E 2.57.

Which is lighter, Sherwin-Williams Green Onyx or Vista Paint Whispering Willow?

Sherwin-Williams Green Onyx is lighter than Vista Paint Whispering Willow by 1.4 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.57 Green Onyx and Whispering Willow
LIGHTESTGreen Onyx LRV 31.4
DARKESTWhispering Willow LRV 30.0
SPREAD1.4LRV points

Side by side

measured values
Green Onyx Whispering Willow
Brand Sherwin-Williams Vista Paint
Code SW 9128 H0082
Hex #989A82 #909780
Light reflectance 31.4 30.0
Undertone yellow-green undertone yellow-green undertone
Chroma 13.4 13.2
Hue angle 112.2° 121.1°
Color family yellow green

Each on its own

full detail