RAL 640-M vs Agreeable Gray
RAL 640-M is a RAL Effect color while Agreeable Gray comes from Sherwin-Williams. RAL 640-M reads as blue, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. At LRV 60 vs 5, Agreeable Gray will read as the brighter of the two — a 55-point gap that matters most in north-facing or low-light rooms. At ΔE 65.9, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 640-M vs Agreeable Gray in Real Spaces
4 real rooms side by side. Seeing RAL 640-M 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.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than RAL 640-M would.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than RAL 640-M would.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than RAL 640-M would.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than RAL 640-M would.
Color Details
RAL 640-M vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 640-M 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-M comparisons
See how RAL 640-M stacks up against other well-photographed colors across different brands and tones.
