Telegrey 2 vs RAL 820-4
Telegrey 2 (RAL Classic) and RAL 820-4 (RAL Effect) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 3-point LRV gap — 25 for Telegrey 2 vs 23 for RAL 820-4 — means Telegrey 2 will open up a space more effectively. A ΔE of 0.4 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Telegrey 2 vs RAL 820-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Telegrey 2 on one side and RAL 820-4 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 Telegrey 2 comparisons
See how Telegrey 2 stacks up against other well-photographed colors across different brands and tones.







































