Cardboard vs Mount Etna
Both from Sherwin-Williams's palette. Hue-wise, Cardboard belongs to the beige family and Mount Etna to the blue-grey family. Cardboard (LRV 22) reflects noticeably more light than Mount Etna (LRV 6), a difference of 15 points that becomes especially apparent in rooms with limited natural light. Cardboard runs warm while Mount Etna is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 39.1, 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.
Cardboard vs Mount Etna in Real Spaces
3 real rooms side by side. Seeing Cardboard and Mount Etna 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 Cardboard will make the room feel meaningfully brighter than Mount Etna would.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Cardboard returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Home Office
The test for a home office color isn't how it looks in a quick glance — it's whether it still feels right after a full day of work. Cardboard reflects noticeably more light off the walls, making the space read more open than Mount Etna.
Color Details
Cardboard vs Mount Etna Simulated Comparison
5 simulated room previews — drag the slider on each to see Cardboard on one side and Mount Etna 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 Cardboard comparisons
See how Cardboard stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 22, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 22), opening up a space where Cardboard encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 22), a gap that shows most in low-lit rooms.
Agreeable Gray reflects far more light (LRV 60 vs 22), opening up a space where Cardboard encloses it.
At LRV 58 vs 22, Accessible Beige is decisively the brighter choice.
A 5-point LRV gap (27 vs 22) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 22), opening up a space where Cardboard encloses it.
At LRV 55 vs 22, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 22, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 22), opening up a space where Cardboard encloses it.
At LRV 66 vs 22, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 22, Shoji White is decisively the brighter choice.
A 10-point LRV gap (22 vs 12) makes Cardboard the marginally brighter of the two.
At LRV 22 vs 8, Cardboard is decisively the brighter choice.
At LRV 68 vs 22, Skimming Stone is decisively the brighter choice.
A 10-point LRV gap (22 vs 12) makes Cardboard the marginally brighter of the two.
At LRV 45 vs 22, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 22), a gap that shows most in low-lit rooms.