Great Falls vs Loch Blue
Both from Sherwin-Williams's palette. These are both blues, so the question isn't which hue to choose — it's where within blue to land. They have nearly identical light reflectance values (15 vs 16), so they'll read as similarly Dark in most lighting conditions. Both lean cool, so they'll behave similarly in mixed or changing light conditions. The ΔE 4.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Great Falls vs Loch Blue in Real Spaces
2 real rooms side by side. Great Falls and Loch Blue are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. The distinction reads clearly at room scale, making the choice between them concrete.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Great Falls vs Loch Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Great Falls on one side and Loch Blue 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 Great Falls comparisons
See how Great Falls stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 15, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 15), opening up a space where Great Falls encloses it.
A 10-point LRV gap (15 vs 6) makes Great Falls the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 15), opening up a space where Great Falls encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 15), opening up a space where Great Falls encloses it.
At LRV 52 vs 15, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 15), opening up a space where Great Falls encloses it.
At LRV 58 vs 15, Accessible Beige is decisively the brighter choice.
A 12-point LRV gap (27 vs 15) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 15), opening up a space where Great Falls encloses it.
Great Falls reads slightly lighter (LRV 15 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 15, Tranquil Dawn is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 15 vs 13), so neither reads brighter in a room.
At LRV 44 vs 15, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 15), opening up a space where Great Falls encloses it.
Artichoke reads slightly lighter (LRV 21 vs 15), a gap that shows most in low-lit rooms.
At LRV 66 vs 15, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 15, Shoji White is decisively the brighter choice.
At LRV 83 vs 15, Snowbound is decisively the brighter choice.
A 3-point LRV gap (15 vs 12) makes Great Falls the marginally brighter of the two.
At LRV 68 vs 15, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 15), opening up a space where Great Falls encloses it.
Calamine reflects far more light (LRV 68 vs 15), opening up a space where Great Falls encloses it.
Treron reads slightly lighter (LRV 25 vs 15), a gap that shows most in low-lit rooms.
A 3-point LRV gap (15 vs 12) makes Great Falls the marginally brighter of the two.
At LRV 45 vs 15, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 15), opening up a space where Great Falls encloses it.
Great Falls reads slightly lighter (LRV 15 vs 7), a gap that shows most in low-lit rooms.
Cement grey reads slightly lighter (LRV 24 vs 15), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 15), opening up a space where Great Falls encloses it.