Grey Heron vs Illusion
Grey Heron and Illusion come from the same Sherwin-Williams collection. Both sit in the greige-grey family, which is useful context if you're narrowing within a single hue direction. The 25-point LRV gap — 65 for Grey Heron vs 40 for Illusion — means Grey Heron will open up a space more effectively. Both share a warm character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 15.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 10 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Grey Heron vs Illusion in Real Spaces
10 real rooms side by side. Seeing Grey Heron and Illusion 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. Grey Heron reflects noticeably more light off the walls, making the space read more open than Illusion.
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. Grey Heron 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. Grey Heron returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Grey Heron will make the room feel meaningfully brighter than Illusion would.
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. Grey Heron returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Home Office
Home office walls matter more than most — you're looking at them all day, and a color that reads fine at first can become tiring over time. Grey Heron returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Mudroom
In a hardworking space like a mudroom, the depth and warmth of a color reads differently than in a quieter room. The LRV gap is large enough that Grey Heron will make the room feel meaningfully brighter than Illusion would.
Patio
Exterior colors look different in open light — both tend to read lighter outside than on an interior swatch, and shadows read more strongly. The LRV gap is large enough that Grey Heron will make the room feel meaningfully brighter than Illusion would.
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. Grey Heron returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Grey Heron reflects noticeably more light off the walls, making the space read more open than Illusion.
Color Details
Grey Heron vs Illusion Simulated Comparison
5 simulated room previews — drag the slider on each to see Grey Heron on one side and Illusion 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 Grey Heron comparisons
See how Grey Heron stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 65, White Dove is decisively the brighter choice.
Ammonite reads slightly lighter (LRV 69 vs 65), a gap that shows most in low-lit rooms.
At LRV 65 vs 6, Grey Heron is decisively the brighter choice.
Grey Heron reflects far more light (LRV 65 vs 52), opening up a space where Purbeck Stone encloses it.
Grey Heron reflects far more light (LRV 65 vs 30), opening up a space where Evergreen Fog encloses it.
At LRV 65 vs 52, Grey Heron is decisively the brighter choice.
Grey Heron reads slightly lighter (LRV 65 vs 60), a gap that shows most in low-lit rooms.
A 7-point LRV gap (65 vs 58) makes Grey Heron the marginally brighter of the two.
At LRV 65 vs 27, Grey Heron is decisively the brighter choice.
Grey Heron reflects far more light (LRV 65 vs 43), opening up a space where French Gray encloses it.
Grey Heron reflects far more light (LRV 65 vs 4), opening up a space where Naval encloses it.
A 10-point LRV gap (65 vs 55) makes Grey Heron the marginally brighter of the two.
At LRV 65 vs 13, Grey Heron is decisively the brighter choice.
At LRV 65 vs 44, Grey Heron is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 65), opening up a space where Grey Heron encloses it.
Grey Heron reflects far more light (LRV 65 vs 21), opening up a space where Artichoke encloses it.
Their light reflectance is nearly identical (LRV 66 vs 65), so neither reads brighter in a room.
A 10-point LRV gap (74 vs 65) makes Shoji White the marginally brighter of the two.
At LRV 83 vs 65, Snowbound is decisively the brighter choice.
At LRV 65 vs 12, Grey Heron is decisively the brighter choice.
A 3-point LRV gap (68 vs 65) makes Skimming Stone the marginally brighter of the two.
Grey Heron reflects far more light (LRV 65 vs 41), opening up a space where Dix Blue encloses it.
With LRVs of 68 and 65, the two reflect almost the same amount of light.
Grey Heron reflects far more light (LRV 65 vs 25), opening up a space where Treron encloses it.
At LRV 65 vs 12, Grey Heron is decisively the brighter choice.
At LRV 65 vs 45, Grey Heron is decisively the brighter choice.
Grey Heron reflects far more light (LRV 65 vs 31), opening up a space where Pale Green encloses it.
Grey Heron reflects far more light (LRV 65 vs 7), opening up a space where Pine Needle encloses it.
Grey Heron reflects far more light (LRV 65 vs 24), opening up a space where Cement grey encloses it.
Grey Heron reads slightly lighter (LRV 65 vs 57), a gap that shows most in low-lit rooms.