RAL 840-3 vs Agreeable Gray
RAL 840-3 is a RAL Effect color while Agreeable Gray comes from Sherwin-Williams. Both sit in the greige-grey family, which is useful context if you're narrowing within a single hue direction. At LRV 60 vs 46, Agreeable Gray will read as the brighter of the two — a 15-point gap that matters most in north-facing or low-light rooms. At ΔE 8.7, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 840-3 vs Agreeable Gray in Real Spaces
5 real rooms side by side. RAL 840-3 and Agreeable Gray are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. 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
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than RAL 840-3 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 840-3 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 840-3 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 840-3 would.
Color Details
RAL 840-3 vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 840-3 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 840-3 comparisons
See how RAL 840-3 stacks up against other well-photographed colors across different brands and tones.
