Halcyon Green vs Thistle
Both from Sherwin-Williams's palette. Halcyon Green reads as green-grey, while Thistle reads as grey — two distinct hue families, not close cousins. Halcyon Green (LRV 38) reflects noticeably more light than Thistle (LRV 30), a difference of 8 points that becomes especially apparent in rooms with limited natural light. Both lean cool, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 21.0, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Halcyon Green vs Thistle in Real Spaces
1 real room side by side. Seeing Halcyon Green and Thistle 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 Halcyon Green will make the room feel meaningfully brighter than Thistle would.
Color Details
Halcyon Green vs Thistle Simulated Comparison
5 simulated room previews — drag the slider on each to see Halcyon Green on one side and Thistle 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 Halcyon Green comparisons
See how Halcyon Green stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 38, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 38), opening up a space where Halcyon Green encloses it.
At LRV 38 vs 6, Halcyon Green is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 38), opening up a space where Halcyon Green encloses it.
Halcyon Green reads slightly lighter (LRV 38 vs 30), a gap that shows most in low-lit rooms.
At LRV 52 vs 38, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 38), opening up a space where Halcyon Green encloses it.
At LRV 58 vs 38, Accessible Beige is decisively the brighter choice.
A 11-point LRV gap (38 vs 27) makes Halcyon Green the marginally brighter of the two.
French Gray reads slightly lighter (LRV 43 vs 38), a gap that shows most in low-lit rooms.
Halcyon Green reflects far more light (LRV 38 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 38, Tranquil Dawn is decisively the brighter choice.
At LRV 38 vs 13, Halcyon Green is decisively the brighter choice.
A 5-point LRV gap (44 vs 38) makes Hardwick White the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 38), opening up a space where Halcyon Green encloses it.
Halcyon Green reflects far more light (LRV 38 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 38, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 38, Shoji White is decisively the brighter choice.
At LRV 83 vs 38, Snowbound is decisively the brighter choice.
At LRV 38 vs 12, Halcyon Green is decisively the brighter choice.
At LRV 68 vs 38, Skimming Stone is decisively the brighter choice.
With LRVs of 41 and 38, the two reflect almost the same amount of light.
Calamine reflects far more light (LRV 68 vs 38), opening up a space where Halcyon Green encloses it.
Halcyon Green reflects far more light (LRV 38 vs 25), opening up a space where Treron encloses it.
At LRV 38 vs 12, Halcyon Green is decisively the brighter choice.
A 7-point LRV gap (45 vs 38) makes Saybrook Sage the marginally brighter of the two.
Halcyon Green reads slightly lighter (LRV 38 vs 31), a gap that shows most in low-lit rooms.
Halcyon Green reflects far more light (LRV 38 vs 7), opening up a space where Pine Needle encloses it.
Halcyon Green reflects far more light (LRV 38 vs 24), opening up a space where Cement grey encloses it.
Guilford Green reflects far more light (LRV 57 vs 38), opening up a space where Halcyon Green encloses it.