When Weathered Boulder down Descending

#1b3743 RGB(27,55,67)

About this color

When Weathered Boulder down Descending settles into a dark blue territory with a moderate quality that feels cool — captured at #1b3743, RGB(27, 55, 67).

#1b3743RGB(27, 55, 67)

HSL 198° · 43% saturation · 18% lightness

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Psychology

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

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History

The ancient Egyptians were among the first to produce blue pigment artificially — Egyptian blue, made from copper and sand, coloured the walls of pharaonic tombs.

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Design use

From a design perspective, this shade excels as 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

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 Weathered Boulder down Descending
HEX
#1b3743
RGB
rgb(27,55,67)
RGB%
rgb(10.6%,21.6%,26.3%)
HSL
hsl(198,43%,18%)
HSV
hsv(198,60%,26%)
CMYK
cmyk(60,18,0,74)
LAB
lab(21,-7,-11)
LCH
lch(21,13,238)
sRGB
(0.106,0.216,0.263)
HEX8
#1b3743ff
CSS Name
Decimal
027055067

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Color variants

Color info

Lightness
18%
Saturation
43%
Hue
198°
Chroma
13
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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