Hidden Sea Glass vs Grey Blue
Hidden Sea Glass is a Behr color while Grey Blue comes from RAL Classic. Hidden Sea Glass reads as blue, while Grey Blue reads as blue-grey — two distinct hue families, not close cousins. At LRV 45 vs 7, Hidden Sea Glass will read as the brighter of the two — a 38-point gap that matters most in north-facing or low-light rooms. At ΔE 55.3, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. 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 Grey Blue in Real Spaces
3 real rooms side by side. Seeing Hidden Sea Glass and Grey Blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Hidden Sea Glass will make the room feel meaningfully brighter than Grey Blue would.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Hidden Sea Glass will make the room feel meaningfully brighter than Grey Blue would.
Front Door
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Hidden Sea Glass returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Hidden Sea Glass vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Hidden Sea Glass on one side and Grey Blue 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.














































