RAL 770-5 vs Chatroom
Where RAL 770-5 belongs to RAL Effect's range, Chatroom is a Sherwin-Williams color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. They have nearly identical light reflectance values (43 vs 41), so they'll read as similarly Medium in most lighting conditions. At ΔE 1.5, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
RAL 770-5 vs Chatroom in Real Spaces
1 real room side by side. RAL 770-5 and Chatroom 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.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
RAL 770-5 vs Chatroom Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 770-5 on one side and Chatroom 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 770-5 comparisons
See how RAL 770-5 stacks up against other well-photographed colors across different brands and tones.
