Mammoth Mountain vs Santorini Blue
Where Mammoth Mountain belongs to Behr's range, Santorini Blue is a Sherwin-Williams color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (11 vs 14), so they'll read as similarly Dark in most lighting conditions. Mammoth Mountain runs blue while Santorini Blue is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 4.2 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.
Mammoth Mountain vs Santorini Blue in Real Spaces
2 real rooms side by side. Mammoth Mountain and Santorini 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.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. The distinction reads clearly at room scale, making the choice between them concrete.
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.
Color Details
Mammoth Mountain vs Santorini Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Mammoth Mountain on one side and Santorini 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 Mammoth Mountain comparisons
See how Mammoth Mountain stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 11, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 11), opening up a space where Mammoth Mountain encloses it.
A 6-point LRV gap (11 vs 6) makes Mammoth Mountain the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 11), opening up a space where Mammoth Mountain encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 11), opening up a space where Mammoth Mountain encloses it.
At LRV 52 vs 11, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 11), opening up a space where Mammoth Mountain encloses it.
At LRV 58 vs 11, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 11, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 11), opening up a space where Mammoth Mountain encloses it.
Mammoth Mountain reads slightly lighter (LRV 11 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 11, Tranquil Dawn is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 13 vs 11), so neither reads brighter in a room.
At LRV 44 vs 11, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 11), opening up a space where Mammoth Mountain encloses it.
Artichoke reads slightly lighter (LRV 21 vs 11), a gap that shows most in low-lit rooms.
At LRV 66 vs 11, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 11, Shoji White is decisively the brighter choice.
At LRV 83 vs 11, Snowbound is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 12 vs 11), so neither reads brighter in a room.
At LRV 68 vs 11, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 11), opening up a space where Mammoth Mountain encloses it.
Calamine reflects far more light (LRV 68 vs 11), opening up a space where Mammoth Mountain encloses it.
Treron reflects far more light (LRV 25 vs 11), opening up a space where Mammoth Mountain encloses it.
Their light reflectance is nearly identical (LRV 12 vs 11), so neither reads brighter in a room.
At LRV 45 vs 11, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 11), opening up a space where Mammoth Mountain encloses it.
Mammoth Mountain reads slightly lighter (LRV 11 vs 7), a gap that shows most in low-lit rooms.
Cement grey reflects far more light (LRV 24 vs 11), opening up a space where Mammoth Mountain encloses it.
Guilford Green reflects far more light (LRV 57 vs 11), opening up a space where Mammoth Mountain encloses it.