Color spec
| Brand | PPG / Glidden |
| Name | Prophetic Sea |
| SKU | PPG1042-5 |
| Hex | #818C9C |
| RGB | 129, 140, 156 |
| HSL | 216°, 12%, 56% |
| LRV | 26 |
| Undertone | cool blue tone |
| Family | Gray |
About PPG / Glidden Prophetic Sea
Prophetic Sea sits in the mid-range at LRV 26, so it shifts visibly through the day — lighter and more open in morning light, deeper and moodier after dark. 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. South-facing rooms will pull it lighter and warmer, while north light cools it down.
Prophetic Sea is versatile enough for full rooms but has enough depth to anchor a space, so it suits living rooms, bedrooms and cabinetry alike. Grays like this read as a modern neutral and sit comfortably alongside both warm woods and cool metals.
Closest matches by brand
10 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 gray from that brand.
Sherwin-Williams
Behr
Benjamin Moore
Valspar
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Diamond Vogel
C2 Paint
Portola Paints
Similar PPG / Glidden colors
closest in the PPG / Glidden deckThe nearest shades to Prophetic Sea within PPG / Glidden'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 #818C9C in HSL space. Pair Prophetic Sea 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.
PPG / Glidden Prophetic Sea Equivalents at Other Brands
Matching Prophetic Sea 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 PPG / Glidden PPG1042-5 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Prophetic Sea
Sherwin-Williams has no exact twin of Prophetic Sea. The nearest is Bracing Blue (SW 6242) at ΔE 4.38 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 25 vs 26). Compare large swatches before substituting. See the full Bracing Blue swatch →
Behr Equivalent of Prophetic Sea
Behr's nearest match is River Tour (PPU15-08), visually identical in normal room light (ΔE 1.26). It sits at the same lightness (LRV 26 vs 26) and carries a cool blue undertone, so it substitutes for Prophetic Sea without repainting risk. See the full River Tour swatch →
Benjamin Moore Equivalent of Prophetic Sea
At Benjamin Moore, the closest color to Prophetic Sea is Irises (1440) — very close at ΔE 3.17, though not an exact twin. It sits at the same lightness (LRV 26 vs 26) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Irises swatch →
Valspar Equivalent of Prophetic Sea
At Valspar, the closest color to Prophetic Sea is Wet Seal (T681) — very close at ΔE 2.26, though not an exact twin. It sits at the same lightness (LRV 25.3 vs 26) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Wet Seal swatch →
Glidden Equivalent of Prophetic Sea
The closest Glidden equivalent of Prophetic Sea is Prophetic Sea (PPG1042-5). At ΔE 0.84 the two are indistinguishable on a wall — it carries the same cool blue undertone and sits at the same lightness (LRV 26 vs 26). If Glidden is your counter, order Prophetic Sea and you'll get the same color. See the full Prophetic Sea swatch →
Dutch Boy Equivalent of Prophetic Sea
Dutch Boy's nearest match is Illusionary (340-5DB), visually identical in normal room light (ΔE 1.41). It sits at the same lightness (LRV 26 vs 26) and carries a cool blue undertone, so it substitutes for Prophetic Sea without repainting risk. See the full Illusionary swatch →
HGTV Home by Sherwin-Williams Equivalent of Prophetic Sea
HGTV Home by Sherwin-Williams has no exact twin of Prophetic Sea. The nearest is Bracing Blue (HGSW 3353) at ΔE 4.38 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 25 vs 26). Compare large swatches before substituting. See the full Bracing Blue swatch →
Portola Paints Equivalent of Prophetic Sea
Portola Paints's nearest match is Cyclone (CYCLONE), visually identical in normal room light (ΔE 1.77). It sits at the same lightness (LRV 26 vs 26) and carries a cool blue undertone, so it substitutes for Prophetic Sea without repainting risk. See the full Cyclone swatch →