Color spec
| Brand | Benjamin Moore |
| Name | Blue Grotto |
| SKU | CC-964 |
| Hex | #353963 |
| RGB | 53, 57, 99 |
| HSL | 235°, 30%, 30% |
| LRV | 6 |
| Undertone | cool blue tone |
| Family | Blue |
About Benjamin Moore Blue Grotto
At LRV 6, Blue Grotto is about as dark as paint gets — it reads near-black on a wall and reveals its character only in direct daylight or under warm bulbs. Its blue undertone is the part to watch: it gets picked up by whatever sits next to it, so test it against your trim, floor and the room's main light before committing. In rooms with little natural light it can feel heavy, so reserve it for spaces you want to feel enveloping.
Blue Grotto earns its keep as a statement: accent walls, a front door, cabinetry, a moody powder room, or exterior trim where you want sharp contrast. Blues calm a room, which makes them popular in bedrooms, bathrooms and home offices.
Closest matches by brand
9 brands within ΔE 5The closest matches per brand by ΔE2000, computed against each brand's full deck. Only colors within ΔE 5 (close enough to substitute on a wall) are shown — brands with no real match are left off. Tap any swatch for its full single-color spec; tap the brand title to browse all blue from that brand.
Sherwin-Williams
Behr
Valspar
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Hirshfield's
Annie Sloan
Kompozit
Similar Benjamin Moore colors
closest in the Benjamin Moore deckThe nearest shades to Blue Grotto within Benjamin Moore's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
Coordinated palette
Generated by hue-rotating #353963 in HSL space. Pair Blue Grotto with one accent and one neutral — the swatches below are starting points, not final picks.
Accessibility (WCAG contrast)
WCAG 2.1: AA = 4.5:1 normal text · AA Large = 3:1 large text · AAA = 7:1 normal text.
Benjamin Moore Blue Grotto Equivalents at Other Brands
Matching Blue Grotto from a different paint counter? Below is the single closest color in each major US deck and how close it really is. Remember that any paint store can also custom-tint Benjamin Moore CC-964 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Blue Grotto
Sherwin-Williams has no exact twin of Blue Grotto. The nearest is Dewberry (SW 6552) at ΔE 4.27 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 5 vs 6). Compare large swatches before substituting. See the full Dewberry swatch →
Behr Equivalent of Blue Grotto
Behr has no exact twin of Blue Grotto. The nearest is Deep Merlot (M100-7) at ΔE 3.88 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 5 vs 6). Compare large swatches before substituting. See the full Deep Merlot swatch →
Valspar Equivalent of Blue Grotto
At Valspar, the closest color to Blue Grotto is Spirit Blue (4011-9) — very close at ΔE 2.33, though not an exact twin. It runs slightly darker (LRV 4 vs 6) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Spirit Blue swatch →
Dutch Boy Equivalent of Blue Grotto
Dutch Boy has no exact twin of Blue Grotto. The nearest is Violet Aurora (243-7DB) at ΔE 4.27 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 5 vs 6). Compare large swatches before substituting. See the full Violet Aurora swatch →
HGTV Home by Sherwin-Williams Equivalent of Blue Grotto
HGTV Home by Sherwin-Williams has no exact twin of Blue Grotto. The nearest is Amethyst Glass (HGSW 2411) at ΔE 4.27 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 5 vs 6). Compare large swatches before substituting. See the full Amethyst Glass swatch →
Dunn-Edwards Equivalent of Blue Grotto
At Dunn-Edwards, the closest color to Blue Grotto is Magic Night (DEA191) — very close at ΔE 3.29, though not an exact twin. It sits at the same lightness (LRV 5 vs 6) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Magic Night swatch →
Hirshfield's Equivalent of Blue Grotto
At Hirshfield's, the closest color to Blue Grotto is Newport Indigo (H0061) — very close at ΔE 2.88, though not an exact twin. It sits at the same lightness (LRV 5 vs 6) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Newport Indigo swatch →
Annie Sloan Equivalent of Blue Grotto
Annie Sloan has no exact twin of Blue Grotto. The nearest is Napoleonic Blue (NAPOLEONIC BLUE) at ΔE 3.65 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 5 vs 6). Compare large swatches before substituting. See the full Napoleonic Blue swatch →