Hidden Sea Glass vs Agreeable Gray
Where Hidden Sea Glass belongs to Behr's range, Agreeable Gray is a Sherwin-Williams color. Hidden Sea Glass reads as blue, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. Agreeable Gray (LRV 60) reflects noticeably more light than Hidden Sea Glass (LRV 45), a difference of 15 points that becomes especially apparent in rooms with limited natural light. Hidden Sea Glass runs blue while Agreeable Gray is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 33.1, 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.
Hidden Sea Glass vs Agreeable Gray in Real Spaces
3 real rooms side by side. Seeing Hidden Sea Glass and Agreeable Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Hidden Sea Glass.
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. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Hidden Sea Glass.
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 Agreeable Gray will make the room feel meaningfully brighter than Hidden Sea Glass would.
Color Details
Hidden Sea Glass vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Hidden Sea Glass on one side and Agreeable Gray 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 Hidden Sea Glass comparisons
See how Hidden Sea Glass stacks up against other well-photographed colors across different brands and tones.
