Blue Grotto vs Grape Gum
Both from Benjamin Moore's palette. Blue Grotto reads as blue, while Grape Gum reads as blue-purple — two distinct hue families, not close cousins. They have nearly identical light reflectance values (6 vs 7), so they'll read as similarly Dark in most lighting conditions. Blue Grotto runs blue while Grape Gum is decidedly blue and purple, which means they'll respond very differently to warm vs cool light sources. The ΔE 5.3 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Grotto vs Grape Gum Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Grotto on one side and Grape Gum 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 Blue Grotto comparisons
See how Blue Grotto stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 6, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 6), opening up a space where Blue Grotto encloses it.
Their light reflectance is nearly identical (LRV 6 vs 6), so neither reads brighter in a room.
Purbeck Stone reflects far more light (LRV 52 vs 6), opening up a space where Blue Grotto encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 6), opening up a space where Blue Grotto encloses it.
At LRV 52 vs 6, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 6), opening up a space where Blue Grotto encloses it.
At LRV 58 vs 6, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 6, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 6), opening up a space where Blue Grotto encloses it.
With LRVs of 6 and 4, the two reflect almost the same amount of light.
At LRV 55 vs 6, Tranquil Dawn is decisively the brighter choice.
A 7-point LRV gap (13 vs 6) makes Bancha the marginally brighter of the two.
At LRV 44 vs 6, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 6), opening up a space where Blue Grotto encloses it.
Artichoke reflects far more light (LRV 21 vs 6), opening up a space where Blue Grotto encloses it.
At LRV 66 vs 6, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 6, Shoji White is decisively the brighter choice.
At LRV 83 vs 6, Snowbound is decisively the brighter choice.
A 6-point LRV gap (12 vs 6) makes Pewter Green the marginally brighter of the two.
At LRV 68 vs 6, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 6), opening up a space where Blue Grotto encloses it.
Calamine reflects far more light (LRV 68 vs 6), opening up a space where Blue Grotto encloses it.
Treron reflects far more light (LRV 25 vs 6), opening up a space where Blue Grotto encloses it.
A 6-point LRV gap (12 vs 6) makes Vintage Vogue the marginally brighter of the two.
At LRV 45 vs 6, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 6), opening up a space where Blue Grotto encloses it.
With LRVs of 7 and 6, the two reflect almost the same amount of light.
Cement grey reflects far more light (LRV 24 vs 6), opening up a space where Blue Grotto encloses it.
Guilford Green reflects far more light (LRV 57 vs 6), opening up a space where Blue Grotto encloses it.