Undersea vs Treron
Where Undersea belongs to Behr's range, Treron is a Farrow & Ball color. Undersea reads as blue-grey, while Treron reads as greige-grey — two distinct hue families, not close cousins. Treron (LRV 25) reflects noticeably more light than Undersea (LRV 9), a difference of 16 points that becomes especially apparent in rooms with limited natural light. Undersea runs blue while Treron is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 26.2, 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.
Undersea vs Treron in Real Spaces
3 real rooms side by side. Seeing Undersea and Treron 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 Treron will make the room feel meaningfully brighter than Undersea would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Treron reflects noticeably more light off the walls, making the space read more open than Undersea.
Color Details
Undersea vs Treron Simulated Comparison
5 simulated room previews — drag the slider on each to see Undersea on one side and Treron 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 Undersea comparisons
See how Undersea stacks up against other well-photographed colors across different brands and tones.
