Astronomical vs Pewter Green
Astronomical (Behr) and Pewter Green (Sherwin-Williams) come from different manufacturers. Hue-wise, Astronomical belongs to the grey family and Pewter Green to the green-grey family. The 5-point LRV gap — 12 for Pewter Green vs 7 for Astronomical — means Pewter Green will open up a space more effectively. Where Astronomical leans green, Pewter Green reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 10.6 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.
Astronomical vs Pewter Green in Real Spaces
2 real rooms side by side. Seeing Astronomical and Pewter Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Pewter Green has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Pewter Green has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Astronomical vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Astronomical on one side and Pewter Green on the other.
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 Astronomical comparisons
See how Astronomical stacks up against other well-photographed colors across different brands and tones.
