RAL 830-2 vs Castlegate
RAL 830-2 is a RAL Effect color while Castlegate comes from Sherwin-Williams. These are both greys, so the question isn't which hue to choose — it's where within grey to land. With LRVs of 38 and 37, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 1.6, the difference is subtle — you'd need them side by side to reliably tell them apart. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
RAL 830-2 vs Castlegate Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 830-2 on one side and Castlegate 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 830-2 comparisons
See how RAL 830-2 stacks up against other well-photographed colors across different brands and tones.








































