RAL 660-1 vs Agreeable Gray
RAL 660-1 (RAL Effect) and Agreeable Gray (Sherwin-Williams) come from different manufacturers. Hue-wise, RAL 660-1 belongs to the blue family and Agreeable Gray to the greige-grey family. The 46-point LRV gap — 60 for Agreeable Gray vs 15 for RAL 660-1 — means Agreeable Gray will open up a space more effectively. A ΔE of 45.4 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 660-1 vs Agreeable Gray in Real Spaces
6 real rooms side by side. Seeing RAL 660-1 and Agreeable Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than RAL 660-1.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
RAL 660-1 vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 660-1 on one side and Agreeable 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 660-1 comparisons
See how RAL 660-1 stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 15), opening up a space where RAL 660-1 encloses it.
At LRV 52 vs 15, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 15, Evergreen Fog is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 15), opening up a space where RAL 660-1 encloses it.
Denim Drift reflects far more light (LRV 27 vs 15), opening up a space where RAL 660-1 encloses it.
At LRV 43 vs 15, French Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 15), opening up a space where RAL 660-1 encloses it.
Hardwick White reflects far more light (LRV 44 vs 15), opening up a space where RAL 660-1 encloses it.
At LRV 84 vs 15, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 15), opening up a space where RAL 660-1 encloses it.
Shoji White reflects far more light (LRV 74 vs 15), opening up a space where RAL 660-1 encloses it.
RAL 660-1 reads slightly lighter (LRV 15 vs 12), a gap that shows most in low-lit rooms.
RAL 660-1 reads slightly lighter (LRV 15 vs 8), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 15), opening up a space where RAL 660-1 encloses it.
With LRVs of 15 and 12, the two reflect almost the same amount of light.
Saybrook Sage reflects far more light (LRV 45 vs 15), opening up a space where RAL 660-1 encloses it.
At LRV 31 vs 15, Pale Green is decisively the brighter choice.
A 8-point LRV gap (15 vs 7) makes RAL 660-1 the marginally brighter of the two.