Cosmic Blue vs Iron Ore
Cosmic Blue (Behr) and Iron Ore (Sherwin-Williams) come from different manufacturers. Hue-wise, Cosmic Blue belongs to the blue family and Iron Ore to the grey family. The 41-point LRV gap — 47 for Cosmic Blue vs 6 for Iron Ore — means Cosmic Blue will open up a space more effectively. Where Cosmic Blue leans blue, Iron Ore reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 50.4 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cosmic Blue vs Iron Ore in Real Spaces
6 real rooms side by side. Seeing Cosmic Blue 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
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Cosmic Blue reflects noticeably more light off the walls, making the space read more open than Iron Ore.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Cosmic Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Cosmic Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Cosmic Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Cosmic Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Cosmic Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Cosmic Blue vs Iron Ore Simulated Comparison
5 simulated room previews — drag the slider on each to see Cosmic Blue 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 Cosmic Blue comparisons
See how Cosmic Blue stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 47, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 47), opening up a space where Cosmic Blue encloses it.
Purbeck Stone reads slightly lighter (LRV 52 vs 47), a gap that shows most in low-lit rooms.
Cosmic Blue reflects far more light (LRV 47 vs 30), opening up a space where Evergreen Fog encloses it.
A 5-point LRV gap (52 vs 47) makes Mizzle the marginally brighter of the two.
Agreeable Gray reflects far more light (LRV 60 vs 47), opening up a space where Cosmic Blue encloses it.
A 11-point LRV gap (58 vs 47) makes Accessible Beige the marginally brighter of the two.
At LRV 47 vs 27, Cosmic Blue is decisively the brighter choice.
Cosmic Blue reads slightly lighter (LRV 47 vs 43), a gap that shows most in low-lit rooms.
Cosmic Blue reflects far more light (LRV 47 vs 4), opening up a space where Naval encloses it.
A 8-point LRV gap (55 vs 47) makes Tranquil Dawn the marginally brighter of the two.
At LRV 47 vs 13, Cosmic Blue is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 47 vs 44), so neither reads brighter in a room.
Pure White reflects far more light (LRV 84 vs 47), opening up a space where Cosmic Blue encloses it.
Cosmic Blue reflects far more light (LRV 47 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 47, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 47, Shoji White is decisively the brighter choice.
At LRV 83 vs 47, Snowbound is decisively the brighter choice.
At LRV 47 vs 12, Cosmic Blue is decisively the brighter choice.
At LRV 68 vs 47, Skimming Stone is decisively the brighter choice.
Cosmic Blue reads slightly lighter (LRV 47 vs 41), a gap that shows most in low-lit rooms.
Calamine reflects far more light (LRV 68 vs 47), opening up a space where Cosmic Blue encloses it.
Cosmic Blue reflects far more light (LRV 47 vs 25), opening up a space where Treron encloses it.
At LRV 47 vs 12, Cosmic Blue is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 47 vs 45), so neither reads brighter in a room.
Cosmic Blue reflects far more light (LRV 47 vs 31), opening up a space where Pale Green encloses it.
Cosmic Blue reflects far more light (LRV 47 vs 7), opening up a space where Pine Needle encloses it.
Cosmic Blue reflects far more light (LRV 47 vs 24), opening up a space where Cement grey encloses it.
Guilford Green reads slightly lighter (LRV 57 vs 47), a gap that shows most in low-lit rooms.
Just Walnut reflects far more light (LRV 72 vs 47), opening up a space where Cosmic Blue encloses it.