S 4010-B70G vs RAL 660-1
S 4010-B70G is a NCS color while RAL 660-1 comes from RAL Effect. S 4010-B70G reads as blue-grey, while RAL 660-1 reads as blue — two distinct hue families, not close cousins. At LRV 28 vs 15, S 4010-B70G will read as the brighter of the two — a 13-point gap that matters most in north-facing or low-light rooms. At ΔE 27.4, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
S 4010-B70G vs RAL 660-1 in Real Spaces
1 real room side by side. Seeing S 4010-B70G and RAL 660-1 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. S 4010-B70G returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
S 4010-B70G vs RAL 660-1 Simulated Comparison
5 simulated room previews — drag the slider on each to see S 4010-B70G on one side and RAL 660-1 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 S 4010-B70G comparisons
See how S 4010-B70G stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 28), opening up a space where S 4010-B70G encloses it.
At LRV 83 vs 28, White Dove is decisively the brighter choice.
At LRV 28 vs 6, S 4010-B70G is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 28), opening up a space where S 4010-B70G encloses it.
With LRVs of 30 and 28, the two reflect almost the same amount of light.
At LRV 52 vs 28, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 28), opening up a space where S 4010-B70G encloses it.
At LRV 58 vs 28, Accessible Beige is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 28 vs 27), so neither reads brighter in a room.
French Gray reflects far more light (LRV 43 vs 28), opening up a space where S 4010-B70G encloses it.
S 4010-B70G reflects far more light (LRV 28 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 28, Tranquil Dawn is decisively the brighter choice.
At LRV 28 vs 13, S 4010-B70G is decisively the brighter choice.
At LRV 44 vs 28, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 28), opening up a space where S 4010-B70G encloses it.
S 4010-B70G reads slightly lighter (LRV 28 vs 21), a gap that shows most in low-lit rooms.
At LRV 66 vs 28, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 28, Shoji White is decisively the brighter choice.
At LRV 83 vs 28, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 28), opening up a space where S 4010-B70G encloses it.
At LRV 28 vs 12, S 4010-B70G is decisively the brighter choice.
At LRV 28 vs 8, S 4010-B70G is decisively the brighter choice.
At LRV 68 vs 28, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 28), opening up a space where S 4010-B70G encloses it.
At LRV 28 vs 12, S 4010-B70G is decisively the brighter choice.
At LRV 45 vs 28, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 28), a gap that shows most in low-lit rooms.