Form vs Iron Ore
Where Form belongs to Jotun's range, Iron Ore is a Sherwin-Williams color. Hue-wise, Form belongs to the greige-grey family and Iron Ore to the grey family. Form (LRV 30) reflects noticeably more light than Iron Ore (LRV 6), a difference of 25 points that becomes especially apparent in rooms with limited natural light. Form runs warm while Iron Ore is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 33.7, 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 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Form vs Iron Ore in Real Spaces
5 real rooms side by side. Seeing Form and Iron Ore 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 Form will make the room feel meaningfully brighter than Iron Ore 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. Form reflects noticeably more light off the walls, making the space read more open than Iron Ore.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Form reflects noticeably more light off the walls, making the space read more open than Iron Ore.
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. Form reflects noticeably more light off the walls, making the space read more open than Iron Ore.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Form reflects noticeably more light off the walls, making the space read more open than Iron Ore.
Color Details
Form vs Iron Ore Simulated Comparison
5 simulated room previews — drag the slider on each to see Form on one side and Iron Ore 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 Form comparisons
See how Form stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 30, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 30), opening up a space where Form encloses it.
With LRVs of 30 and 30, the two reflect almost the same amount of light.
Agreeable Gray reflects far more light (LRV 60 vs 30), opening up a space where Form encloses it.
At LRV 58 vs 30, Accessible Beige is decisively the brighter choice.
A 3-point LRV gap (30 vs 27) makes Form the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 30), opening up a space where Form encloses it.
At LRV 55 vs 30, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 30, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 30), opening up a space where Form encloses it.
At LRV 66 vs 30, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 30, Shoji White is decisively the brighter choice.
At LRV 30 vs 12, Form is decisively the brighter choice.
At LRV 68 vs 30, Skimming Stone is decisively the brighter choice.
At LRV 30 vs 12, Form is decisively the brighter choice.
At LRV 45 vs 30, Saybrook Sage is decisively the brighter choice.
With LRVs of 31 and 30, the two reflect almost the same amount of light.
Form reflects far more light (LRV 30 vs 7), opening up a space where Pine Needle encloses it.
Form reads slightly lighter (LRV 30 vs 24), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 30), opening up a space where Form encloses it.
Just Walnut reflects far more light (LRV 72 vs 30), opening up a space where Form encloses it.