Color spec
| Brand | Valspar |
| Name | Poseidon's Castle |
| SKU | V066-5 |
| Hex | #227878 |
| RGB | 34, 120, 120 |
| HSL | 180°, 56%, 30% |
| LRV | 15.1 |
| Undertone | blue-green / cool |
| Family | Teal |
About Valspar Poseidon's Castle
With an LRV of 15.1, Poseidon's Castle is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. Its teal 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. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Poseidon's Castle works best as a feature — a single wall, built-ins, a study or dining room — rather than wrapping a whole bright space. Teals add character without shouting — good for a vanity, an island or a feature wall.
Closest matches at every US brand
10 brands · top 5 each5 closest matches per brand by ΔE2000, computed against each brand's full deck. Tap any swatch for its full single-color spec; tap the brand title to browse all teal from that brand.
Benjamin Moore
Sherwin-Williams
PPG / Glidden
Dunn-Edwards
Behr
Kompozit
Farrow & Ball
Magnolia Home
Clare
Backdrop
Similar Valspar colors
closest in the Valspar deckThe nearest shades to Poseidon's Castle within Valspar'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 #227878 in HSL space. Pair Poseidon's Castle 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.
Valspar Poseidon's Castle Equivalents at Other Brands
Matching Poseidon's Castle 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 Valspar V066-5 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Benjamin Moore Equivalent of Poseidon's Castle
Benjamin Moore's nearest match is Largo Teal (742), visually identical in normal room light (ΔE 1.86). It sits at the same lightness (LRV 15 vs 15.1) and carries a cool blue-green undertone, so it substitutes for Poseidon's Castle without repainting risk. See the full Largo Teal swatch →
Sherwin-Williams Equivalent of Poseidon's Castle
At Sherwin-Williams, the closest color to Poseidon's Castle is Maxi Teal (SW 6769) — very close at ΔE 2.46, though not an exact twin. It sits at the same lightness (LRV 14 vs 15.1) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Maxi Teal swatch →
PPG / Glidden Equivalent of Poseidon's Castle
At PPG / Glidden, the closest color to Poseidon's Castle is Hypnotic Sea (1234-7) — very close at ΔE 2.97, though not an exact twin. It sits at the same lightness (LRV 15 vs 15.1) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Hypnotic Sea swatch →
Dunn-Edwards Equivalent of Poseidon's Castle
At Dunn-Edwards, the closest color to Poseidon's Castle is Emperor Jade (DE5734) — very close at ΔE 3.38, though not an exact twin. It sits at the same lightness (LRV 15 vs 15.1) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Emperor Jade swatch →
Behr Equivalent of Poseidon's Castle
At Behr, the closest color to Poseidon's Castle is Cathedral (520F-6) — very close at ΔE 3.4, though not an exact twin. It sits at the same lightness (LRV 15 vs 15.1) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Cathedral swatch →
Kompozit Equivalent of Poseidon's Castle
Kompozit has no exact twin of Poseidon's Castle. The nearest is Atmosphere (0689) at ΔE 4.96 — close, but the difference shows next to trim and in side light. It runs slightly lighter (LRV 19 vs 15.1). Compare large swatches before substituting. See the full Atmosphere swatch →
Farrow & Ball Equivalent of Poseidon's Castle
Farrow & Ball doesn't make a true equivalent of Poseidon's Castle — the nearest deck color, Vardo (NO. 288), is clearly different (ΔE 5.28). For an exact match, any Farrow & Ball retailer can custom-tint Valspar V066-5 instead. See the full Vardo swatch →
Magnolia Home Equivalent of Poseidon's Castle
Magnolia Home doesn't make a true equivalent of Poseidon's Castle — the nearest deck color, Aspen Leaf (JG-71), is clearly different (ΔE 8.72). For an exact match, any Magnolia Home retailer can custom-tint Valspar V066-5 instead. See the full Aspen Leaf swatch →
Clare Equivalent of Poseidon's Castle
Clare doesn't make a true equivalent of Poseidon's Castle — the nearest deck color, Sublime (PNT100-DP-45), is clearly different (ΔE 10.04). For an exact match, any Clare retailer can custom-tint Valspar V066-5 instead. See the full Sublime swatch →
Backdrop Equivalent of Poseidon's Castle
Backdrop doesn't make a true equivalent of Poseidon's Castle — the nearest deck color, Mom Jeans (BD-MJ), is clearly different (ΔE 16.43). For an exact match, any Backdrop retailer can custom-tint Valspar V066-5 instead. See the full Mom Jeans swatch →