Thermal vs Whale Gray
Both from Behr's palette. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. Whale Gray (LRV 13) reflects noticeably more light than Thermal (LRV 7), a difference of 6 points that becomes especially apparent in rooms with limited natural light. Both lean blue, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 17.6, 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.
Thermal vs Whale Gray in Real Spaces
1 real room side by side. Seeing Thermal and Whale 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. Whale Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Thermal vs Whale Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Thermal on one side and Whale 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.