Umbral Cavern off Trembling

#0a210c RGB(10,33,12)

About this color

Umbral Cavern off Trembling is a vivid, deep green tone, fixed at #0a210c in the RGB color space.

#0a210cRGB(10, 33, 12)

HSL 125° · 53% saturation · 8% lightness

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Psychology

In its deeper registers green suggests reliability, endurance, and a grounded relationship with nature.

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History

Scheele's Green, an arsenic-based pigment popular in Victorian wallpaper and clothing, is now understood to have caused widespread harm — a cautionary chapter in colour history.

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Design use

As a dark tone, it naturally lends itself to a background for light-coloured text, as a deep accent stripe, or as an anchoring tone in dark-mode interfaces. It pairs naturally with off-whites, warm creams, and metallic highlights.

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Colour pairings

For palette building, this green complements red-violet shades for maximum contrast, but pairs more gently with sandy neutrals, warm whites, and wood tones.

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Color formats

Name
Umbral Cavern off Trembling
HEX
#0a210c
RGB
rgb(10,33,12)
RGB%
rgb(3.9%,12.9%,4.7%)
HSL
hsl(125,53%,8%)
HSV
hsv(125,70%,13%)
CMYK
cmyk(70,0,64,87)
LAB
lab(10,-15,10)
LCH
lch(10,18,146)
sRGB
(0.039,0.129,0.047)
HEX8
#0a210cff
CSS Name
Decimal
010033012

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Color variants

Color info

Lightness
8%
Saturation
53%
Hue
125°
Chroma
18
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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