RAL 640-6 vs Pewter Green
RAL 640-6 (RAL Effect) and Pewter Green (Sherwin-Williams) come from different manufacturers. RAL 640-6 reads as blue, while Pewter Green reads as green-grey — two distinct hue families, not close cousins. The 7-point LRV gap — 12 for Pewter Green vs 5 for RAL 640-6 — means Pewter Green will open up a space more effectively. A ΔE of 37.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 640-6 vs Pewter Green in Real Spaces
6 real rooms side by side. Seeing RAL 640-6 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.
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. Pewter Green reads slightly lighter here — a subtle but real difference in how open the space feels.
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.
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. Pewter Green has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Pewter Green has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Pewter Green has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
RAL 640-6 vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 640-6 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 640-6 comparisons
See how RAL 640-6 stacks up against other well-photographed colors across different brands and tones.
