RAL 770-5 vs Gateway Gray
Where RAL 770-5 belongs to RAL Effect's range, Gateway Gray is a Sherwin-Williams color. Both sit in the greige-grey family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (43 vs 41), so they'll read as similarly Medium in most lighting conditions. At ΔE 1.1, 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 Gateway Gray in Real Spaces
1 real room side by side. RAL 770-5 and Gateway 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.
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 Gateway Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 770-5 on one side and Gateway 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 770-5 comparisons
See how RAL 770-5 stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 43), opening up a space where RAL 770-5 encloses it.
A 9-point LRV gap (52 vs 43) makes Purbeck Stone the marginally brighter of the two.
At LRV 43 vs 30, RAL 770-5 is decisively the brighter choice.
At LRV 60 vs 43, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 43), opening up a space where RAL 770-5 encloses it.
RAL 770-5 reflects far more light (LRV 43 vs 27), opening up a space where Denim Drift encloses it.
Their light reflectance is nearly identical (LRV 43 vs 43), so neither reads brighter in a room.
Tranquil Dawn reflects far more light (LRV 55 vs 43), opening up a space where RAL 770-5 encloses it.
With LRVs of 44 and 43, the two reflect almost the same amount of light.
At LRV 84 vs 43, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 43), opening up a space where RAL 770-5 encloses it.
Shoji White reflects far more light (LRV 74 vs 43), opening up a space where RAL 770-5 encloses it.
RAL 770-5 reflects far more light (LRV 43 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 43), opening up a space where RAL 770-5 encloses it.
RAL 770-5 reflects far more light (LRV 43 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 45 and 43, the two reflect almost the same amount of light.
A 12-point LRV gap (43 vs 31) makes RAL 770-5 the marginally brighter of the two.
At LRV 43 vs 7, RAL 770-5 is decisively the brighter choice.
At LRV 43 vs 24, RAL 770-5 is decisively the brighter choice.
At LRV 57 vs 43, Guilford Green is decisively the brighter choice.