Agate Green vs Forever Green
Both from Sherwin-Williams's palette. These are both green-greys, so the question isn't which hue to choose — it's where within green-grey to land. Forever Green (LRV 44) reflects noticeably more light than Agate Green (LRV 34), a difference of 10 points that becomes especially apparent in rooms with limited natural light. Agate Green runs cool while Forever Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 12.9, 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 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Agate Green vs Forever Green in Real Spaces
3 real rooms side by side. Seeing Agate Green and Forever Green 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 Forever Green will make the room feel meaningfully brighter than Agate Green would.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Forever Green reflects noticeably more light off the walls, making the space read more open than Agate Green.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Forever Green will make the room feel meaningfully brighter than Agate Green would.
Color Details
Agate Green vs Forever Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Agate Green on one side and Forever 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.