RAL 780-4 vs Harmonic Tan
RAL 780-4 (RAL Effect) and Harmonic Tan (Sherwin-Williams) come from different manufacturers. Both sit in the beige family, which is useful context if you're narrowing within a single hue direction. Their light reflectance values are nearly the same — 47 vs 45 — so neither will read significantly brighter or darker than the other. ΔE 5.3 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 780-4 vs Harmonic Tan in Real Spaces
3 real rooms side by side. RAL 780-4 and Harmonic Tan 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
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. The distinction reads clearly at room scale, making the choice between them concrete.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
RAL 780-4 vs Harmonic Tan Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 780-4 on one side and Harmonic Tan 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 780-4 comparisons
See how RAL 780-4 stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 47), opening up a space where RAL 780-4 encloses it.
A 5-point LRV gap (52 vs 47) makes Purbeck Stone the marginally brighter of the two.
At LRV 47 vs 30, RAL 780-4 is decisively the brighter choice.
At LRV 60 vs 47, Agreeable Gray is decisively the brighter choice.
Accessible Beige reads slightly lighter (LRV 58 vs 47), a gap that shows most in low-lit rooms.
RAL 780-4 reflects far more light (LRV 47 vs 27), opening up a space where Denim Drift encloses it.
A 3-point LRV gap (47 vs 43) makes RAL 780-4 the marginally brighter of the two.
Tranquil Dawn reads slightly lighter (LRV 55 vs 47), a gap that shows most in low-lit rooms.
With LRVs of 47 and 44, the two reflect almost the same amount of light.
At LRV 84 vs 47, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 47), opening up a space where RAL 780-4 encloses it.
Shoji White reflects far more light (LRV 74 vs 47), opening up a space where RAL 780-4 encloses it.
RAL 780-4 reflects far more light (LRV 47 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 47), opening up a space where RAL 780-4 encloses it.
RAL 780-4 reflects far more light (LRV 47 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 47 and 45, the two reflect almost the same amount of light.
At LRV 47 vs 31, RAL 780-4 is decisively the brighter choice.
At LRV 47 vs 7, RAL 780-4 is decisively the brighter choice.
At LRV 47 vs 24, RAL 780-4 is decisively the brighter choice.
A 11-point LRV gap (57 vs 47) makes Guilford Green the marginally brighter of the two.