Teton Blue vs Gateway Gray
Teton Blue (Behr) and Gateway Gray (Sherwin-Williams) come from different manufacturers. Teton Blue reads as blue-grey, while Gateway Gray reads as greige-grey — two distinct hue families, not close cousins. The 10-point LRV gap — 41 for Gateway Gray vs 31 for Teton Blue — means Gateway Gray will open up a space more effectively. Where Teton Blue leans blue, Gateway Gray reads warm — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 16.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Teton Blue vs Gateway Gray in Real Spaces
2 real rooms side by side. Seeing Teton Blue and Gateway Gray 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
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Gateway Gray reflects noticeably more light off the walls, making the space read more open than Teton Blue.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Gateway Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Teton Blue vs Gateway Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Teton Blue on one side and Gateway 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.
More Teton Blue comparisons
See how Teton Blue stacks up against other well-photographed colors across different brands and tones.












































