When the Penumbral Cavern until Blackening

#1b2448 RGB(27,36,72)

About this color

When the Penumbral Cavern until Blackening is a dark blue with a moderate character, positioned at #1b2448 on the color spectrum.

#1b2448RGB(27, 36, 72)

HSL 228° · 45% 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
When the Penumbral Cavern until Blackening
HEX
#1b2448
RGB
rgb(27,36,72)
RGB%
rgb(10.6%,14.1%,28.2%)
HSL
hsl(228,45%,19%)
HSV
hsv(228,63%,28%)
CMYK
cmyk(63,50,0,72)
LAB
lab(15,9,-24)
LCH
lch(15,26,291)
sRGB
(0.106,0.141,0.282)
HEX8
#1b2448ff
CSS Name
Decimal
027036072

Similar colors

Color variants

Color info

Lightness
19%
Saturation
45%
Hue
228°
Chroma
26
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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