Green Onyx vs Lady's Slipper paint color comparison

Green Onyx vs Lady's Slipper

Green Onyx and Lady's Slipper come from the same Sherwin-Williams collection. Green Onyx reads as green-greige, while Lady's Slipper reads as blue — two distinct hue families, not close cousins. The 45-point LRV gap — 76 for Lady's Slipper vs 31 for Green Onyx — means Lady's Slipper will open up a space more effectively. Where Green Onyx leans neutral, Lady's Slipper reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 32.4 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Green Onyx vs Lady's Slipper in Real Spaces

2 real rooms side by side. Seeing Green Onyx and Lady's Slipper in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.

Living Room

A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Lady's Slipper reflects noticeably more light off the walls, making the space read more open than Green Onyx.

Green OnyxSw 9128 Living Room

@daninafarms_homelife

Lady's SlipperA hollywood regency living room painted in Lady's Slipper

@mybudgetrecipes

Bathroom

Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Lady's Slipper returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.

Green OnyxGreen Onyx Bathroom

@alex_kwg

Lady's SlipperLady's Slipper — japandi bathroom

@mybudgetrecipes

Color Details

Green Onyx
Sherwin-Williams · 9128
LRV31.4
BrandSherwin-Williams
Number9128
Undertone—
TemperatureNeutral
BrightnessMedium
Lady's Slipper
Sherwin-Williams · 7139
LRV76.5
BrandSherwin-Williams
Number7139
Undertone—
TemperatureCool
BrightnessLight

Green Onyx vs Lady's Slipper Simulated Comparison

5 simulated room previews — drag the slider on each to see Green Onyx on one side and Lady's Slipper on the other.

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.

More Green Onyx comparisons

See how Green Onyx stacks up against other well-photographed colors across different brands and tones.

Evergreen Fog
Evergreen Fog
Green Onyx
Green Onyx
Evergreen Fog vs Green Onyx
Sherwin-Williams
Green Onyx
9128 · LRV 31

With LRVs of 31 and 30, the two reflect almost the same amount of light.

Artichoke
Artichoke
Green Onyx
Green Onyx
Artichoke vs Green Onyx
Sherwin-Williams
Artichoke
LRV 21
Sherwin-Williams
Green Onyx
9128 · LRV 31

Green Onyx reads slightly lighter (LRV 31 vs 21), a gap that shows most in low-lit rooms.