RAL 660-6 vs Agreeable Gray
Where RAL 660-6 belongs to RAL Effect's range, Agreeable Gray is a Sherwin-Williams color. RAL 660-6 reads as blue, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. Agreeable Gray (LRV 60) reflects noticeably more light than RAL 660-6 (LRV 47), a difference of 13 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 25.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 660-6 vs Agreeable Gray in Real Spaces
6 real rooms side by side. Seeing RAL 660-6 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than RAL 660-6 would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than RAL 660-6.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than RAL 660-6.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than RAL 660-6.
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. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than RAL 660-6.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than RAL 660-6.
Color Details
RAL 660-6 vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 660-6 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 660-6 comparisons
See how RAL 660-6 stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 47, White Dove is decisively the brighter choice.
Purbeck Stone reads slightly lighter (LRV 52 vs 47), a gap that shows most in low-lit rooms.
RAL 660-6 reflects far more light (LRV 47 vs 30), opening up a space where Evergreen Fog encloses it.
A 10-point LRV gap (58 vs 47) makes Accessible Beige the marginally brighter of the two.
At LRV 47 vs 27, RAL 660-6 is decisively the brighter choice.
RAL 660-6 reads slightly lighter (LRV 47 vs 43), a gap that shows most in low-lit rooms.
A 8-point LRV gap (55 vs 47) makes Tranquil Dawn the marginally brighter of the two.
A 4-point LRV gap (47 vs 44) makes RAL 660-6 the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 47), opening up a space where RAL 660-6 encloses it.
At LRV 66 vs 47, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 47, Shoji White is decisively the brighter choice.
At LRV 47 vs 12, RAL 660-6 is decisively the brighter choice.
At LRV 47 vs 8, RAL 660-6 is decisively the brighter choice.
At LRV 68 vs 47, Skimming Stone is decisively the brighter choice.
At LRV 47 vs 12, RAL 660-6 is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 47 vs 45), so neither reads brighter in a room.
RAL 660-6 reflects far more light (LRV 47 vs 31), opening up a space where Pale Green encloses it.
RAL 660-6 reflects far more light (LRV 47 vs 7), opening up a space where Pine Needle encloses it.