What the Moonless Cavern until Clouding

#21343f RGB(33,52,63)

About this color

What the Moonless Cavern until Clouding settles into a dark blue territory with a moderate quality that feels cool — captured at #21343f, RGB(33, 52, 63).

#21343fRGB(33, 52, 63)

HSL 202° · 31% saturation · 19% lightness

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Psychology

In its darkest registers blue becomes serious and introspective: trustworthy, professional, slightly austere.

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History

Blue has been among the most valued pigments throughout history — ultramarine, ground from lapis lazuli, was once worth more than gold and reserved for the robes of the Virgin Mary in medieval painting.

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Design use

From a design perspective, this shade excels as a grounding element in print design — covers, footers, section dividers. On screen it suits dashboards and interfaces where a serious tone matters.

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Colour pairings

Looking at colour relationships, this blue pairs naturally with warm neutrals — tawny beiges, soft terracottas, aged brass — which amplify its cool character by contrast. Analogous blue-violets and blue-greens give a more cohesive, tonal result.

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Color Categories

Color formats

Name
What the Moonless Cavern until Clouding
HEX
#21343f
RGB
rgb(33,52,63)
RGB%
rgb(12.9%,20.4%,24.7%)
HSL
hsl(202,31%,19%)
HSV
hsv(202,48%,25%)
CMYK
cmyk(48,17,0,75)
LAB
lab(21,-4,-9)
LCH
lch(21,10,246)
sRGB
(0.129,0.204,0.247)
HEX8
#21343fff
CSS Name
Decimal
033052063

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Color variants

Color info

Lightness
19%
Saturation
31%
Hue
202°
Chroma
10
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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