PaintDial
Johnstone's

Sea Monster

Hex #48565ALRV ≈ 9Lightness 36/100
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The same colour in other brands

The closest equivalent from each major brand, ranked by perceptual colour distance (ΔE) — under 2 is near-identical.

Deep Blue SpruceValsparΔE 1.9
Winters SkyDuluxΔE 2.4
Hopper HeadFarrow & BallΔE 4.1
Harley GreenLittle GreeneΔE 4.9

Lighter & darker

Real paints in this colour family, stepped from light to dark.

Jack BlackLittle Greene
High SaluteJohnstone's
Sea MonsterJohnstone's
EtruriaLittle Greene
Symphony Of BlueJohnstone's
New SteelJohnstone's
Grey FrostJohnstone's
Winter Teal 6Dulux

Pairs well with

Sympathetic neutrals for trim and ceilings, plus one contrast accent.

Stiff BreezeJohnstone's
Winter Teal 6Dulux
Platinum MedalJohnstone's
Bongo Jazz 2Dulux

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