colorpalette.org
COLOR
#182F21
Nightmare
Values · copy any
On white
Aa
14.31:1
Passes AAA
On black
Aa
1.22:1
Fails AA
Best text on this color
Aa#FFFFFF(14.31:1)

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Harmonies · live
Colour-blindness preview
Normal vision#182F21
Protanopia#2F2C20
Deuteranopia#2B2922
Tritanopia#132F2B

Tints & shades

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Tetradic
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Palettes with this color

Colors that go with Nightmare

Nightmare sits in the green family. Pair it with warm woods, cream and terracotta, or a crisp white for a clean, natural feel, or lean into its harmonies below for a ready-made scheme.

Closest named, CSS & systems

Pantone & RAL matches are coming soon — those libraries aren't openly licensed for redistribution.

Nightmare — meaning & where to use it

Nightmare is a deep, shadowy green — it reads as fresh, natural and reassuring. It's a natural fit for health, sustainability, finance and outdoor brands. To keep it balanced, pair it with warm woods, cream and terracotta, or a crisp white for a clean, natural feel.

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Nightmare color card — #182F21, 24, 47, 33

1200×1500 — sized for Pinterest, Instagram & social sharing. Free to download and use.

This exact shade isn't a named or standard-set colour, so it isn't indexed — but every tool above works.