Acier vs Eider White
Both from Sherwin-Williams's palette. Hue-wise, Acier belongs to the grey family and Eider White to the greige-grey family. Eider White (LRV 73) reflects noticeably more light than Acier (LRV 32), a difference of 41 points that becomes especially apparent in rooms with limited natural light. Acier runs neutral while Eider White is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 25.2, 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 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Acier vs Eider White in Real Spaces
3 real rooms side by side. Seeing Acier and Eider White 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 Eider White will make the room feel meaningfully brighter than Acier would.
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. Eider White reflects noticeably more light off the walls, making the space read more open than Acier.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Eider White reflects noticeably more light off the walls, making the space read more open than Acier.
Color Details
Acier vs Eider White Simulated Comparison
5 simulated room previews — drag the slider on each to see Acier on one side and Eider White 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 Acier comparisons
See how Acier stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 32, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 32), opening up a space where Acier encloses it.
With LRVs of 32 and 30, the two reflect almost the same amount of light.
Agreeable Gray reflects far more light (LRV 60 vs 32), opening up a space where Acier encloses it.
At LRV 58 vs 32, Accessible Beige is decisively the brighter choice.
A 5-point LRV gap (32 vs 27) makes Acier the marginally brighter of the two.
French Gray reads slightly lighter (LRV 43 vs 32), a gap that shows most in low-lit rooms.
At LRV 55 vs 32, Tranquil Dawn is decisively the brighter choice.
A 12-point LRV gap (44 vs 32) makes Hardwick White the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 32), opening up a space where Acier encloses it.
At LRV 66 vs 32, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 32, Shoji White is decisively the brighter choice.
At LRV 32 vs 12, Acier is decisively the brighter choice.
At LRV 68 vs 32, Skimming Stone is decisively the brighter choice.
At LRV 32 vs 12, Acier is decisively the brighter choice.
At LRV 45 vs 32, Saybrook Sage is decisively the brighter choice.
With LRVs of 32 and 31, the two reflect almost the same amount of light.
Acier reflects far more light (LRV 32 vs 7), opening up a space where Pine Needle encloses it.
Acier reads slightly lighter (LRV 32 vs 24), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 32), opening up a space where Acier encloses it.