RAL 640-1 vs Agreeable Gray
RAL 640-1 (RAL Effect) and Agreeable Gray (Sherwin-Williams) come from different manufacturers. Hue-wise, RAL 640-1 belongs to the blue family and Agreeable Gray to the greige-grey family. The 35-point LRV gap — 60 for Agreeable Gray vs 26 for RAL 640-1 — means Agreeable Gray will open up a space more effectively. A ΔE of 41.0 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 640-1 vs Agreeable Gray in Real Spaces
3 real rooms side by side. Seeing RAL 640-1 and Agreeable Gray 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. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than RAL 640-1.
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. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
RAL 640-1 vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 640-1 on one side and Agreeable Gray 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 640-1 comparisons
See how RAL 640-1 stacks up against other well-photographed colors across different brands and tones.
