Teton Blue vs Fortitude
Where Teton Blue belongs to Behr's range, Fortitude is a Sherwin-Williams color. Teton Blue reads as blue-grey, while Fortitude reads as grey — two distinct hue families, not close cousins. Fortitude (LRV 56) reflects noticeably more light than Teton Blue (LRV 31), a difference of 25 points that becomes especially apparent in rooms with limited natural light. Teton Blue runs blue while Fortitude is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 18.8, 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.
Teton Blue vs Fortitude in Real Spaces
1 real room side by side. Seeing Teton Blue and Fortitude 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. Fortitude reflects noticeably more light off the walls, making the space read more open than Teton Blue.
Color Details
Teton Blue vs Fortitude Simulated Comparison
5 simulated room previews — drag the slider on each to see Teton Blue on one side and Fortitude 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 Teton Blue comparisons
See how Teton Blue stacks up against other well-photographed colors across different brands and tones.










































