RAL 640-4 vs Pewter Green
Where RAL 640-4 belongs to RAL Effect's range, Pewter Green is a Sherwin-Williams color. Hue-wise, RAL 640-4 belongs to the blue family and Pewter Green to the green-grey family. Pewter Green (LRV 12) reflects noticeably more light than RAL 640-4 (LRV 7), a difference of 5 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 37.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 640-4 vs Pewter Green in Real Spaces
5 real rooms side by side. Seeing RAL 640-4 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
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Pewter Green reads slightly lighter here — a subtle but real difference in how open the space feels.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Pewter Green reads slightly lighter here — a subtle but real difference in how open the space feels.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Pewter Green reads slightly lighter here — a subtle but real difference in how open the space feels.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Pewter Green reads slightly lighter here — a subtle but real difference in how open the space feels.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Pewter Green reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
RAL 640-4 vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 640-4 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 RAL 640-4 comparisons
See how RAL 640-4 stacks up against other well-photographed colors across different brands and tones.
