Alyssum vs Rookwood Sash Green
Alyssum and Rookwood Sash Green come from the same Sherwin-Williams collection. Hue-wise, Alyssum belongs to the pink-red family and Rookwood Sash Green to the blue-green family. The 58-point LRV gap — 71 for Alyssum vs 13 for Rookwood Sash Green — means Alyssum will open up a space more effectively. Where Alyssum leans warm, Rookwood Sash Green reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 49.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Alyssum vs Rookwood Sash Green in Real Spaces
4 real rooms side by side. Seeing Alyssum and Rookwood Sash Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Alyssum 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. Alyssum 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. Alyssum 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. Alyssum reflects noticeably more light off the walls, making the space read more open than Rookwood Sash Green.
Color Details
Alyssum vs Rookwood Sash Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Alyssum on one side and Rookwood Sash Green 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 Alyssum comparisons
See how Alyssum stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 71, White Dove is decisively the brighter choice.
Alyssum reflects far more light (LRV 71 vs 52), opening up a space where Purbeck Stone encloses it.
Alyssum reflects far more light (LRV 71 vs 30), opening up a space where Evergreen Fog encloses it.
Alyssum reads slightly lighter (LRV 71 vs 60), a gap that shows most in low-lit rooms.
At LRV 71 vs 58, Alyssum is decisively the brighter choice.
At LRV 71 vs 27, Alyssum is decisively the brighter choice.
Alyssum reflects far more light (LRV 71 vs 43), opening up a space where French Gray encloses it.
At LRV 71 vs 55, Alyssum is decisively the brighter choice.
At LRV 71 vs 44, Alyssum is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 71), opening up a space where Alyssum encloses it.
A 6-point LRV gap (71 vs 66) makes Alyssum the marginally brighter of the two.
A 3-point LRV gap (74 vs 71) makes Shoji White the marginally brighter of the two.
At LRV 71 vs 12, Alyssum is decisively the brighter choice.
At LRV 71 vs 8, Alyssum is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 71 vs 68), so neither reads brighter in a room.
At LRV 71 vs 12, Alyssum is decisively the brighter choice.
At LRV 71 vs 45, Alyssum is decisively the brighter choice.
Alyssum reflects far more light (LRV 71 vs 31), opening up a space where Pale Green encloses it.