S 4010-B70G vs Underseas
S 4010-B70G is a NCS color while Underseas comes from Sherwin-Williams. Hue-wise, S 4010-B70G belongs to the blue-grey family and Underseas to the green-grey family. With LRVs of 28 and 25, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — S 4010-B70G's cool character against Underseas's neutral — becomes most visible against white trim or in morning light. At ΔE 3.7, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. 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 Underseas in Real Spaces
1 real room side by side. S 4010-B70G and Underseas 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
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 reads more restrained here, while Underseas adds a sense of enclosure and warmth.
Color Details
S 4010-B70G vs Underseas Simulated Comparison
5 simulated room previews — drag the slider on each to see S 4010-B70G on one side and Underseas 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.