Sweatshirt Gray vs Thundercloud Gray
Both from Benjamin Moore's palette. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. Thundercloud Gray (LRV 50) reflects noticeably more light than Sweatshirt Gray (LRV 32), a difference of 18 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 13.6, 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.
Sweatshirt Gray vs Thundercloud Gray in Real Spaces
1 real room side by side. Seeing Sweatshirt Gray and Thundercloud Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Thundercloud Gray reflects noticeably more light off the walls, making the space read more open than Sweatshirt Gray.
Color Details
Sweatshirt Gray vs Thundercloud Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Sweatshirt Gray on one side and Thundercloud 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.