Resolute Blue vs Undercool
Resolute Blue and Undercool come from the same Sherwin-Williams collection. These are both blues, so the question isn't which hue to choose — it's where within blue to land. The 9-point LRV gap — 49 for Undercool vs 40 for Resolute Blue — means Undercool will open up a space more effectively. Both share a cool character, which means they'll respond to light and surrounding materials in similar ways. ΔE 10.0 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Resolute Blue vs Undercool Simulated Comparison
5 simulated room previews — drag the slider on each to see Resolute Blue on one side and Undercool 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 Resolute Blue comparisons
See how Resolute Blue stacks up against other well-photographed colors across different brands and tones.
