Halcyon Green vs Window Pane paint color comparison

Halcyon Green vs Window Pane

Both are Sherwin-Williams colors. These are both green-greys, so the question isn't which hue to choose — it's where within green-grey to land. At LRV 72 vs 38, Window Pane will read as the brighter of the two — a 34-point gap that matters most in north-facing or low-light rooms. They share a cool quality — useful to know if you're layering them in the same space. At ΔE 20.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.

Color Details

Halcyon Green
Sherwin-Williams · 6213
LRV38.3
BrandSherwin-Williams
Number6213
Undertone—
TemperatureCool
BrightnessMedium
Window Pane
Sherwin-Williams · 6210
LRV72.2
BrandSherwin-Williams
Number6210
Undertone—
TemperatureCool
BrightnessLight

Halcyon Green vs Window Pane Simulated Comparison

5 simulated room previews — drag the slider on each to see Halcyon Green on one side and Window Pane 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.