Shadowy Cavern round the Hardening

#001781 RGB(0,23,129)

About this color

Shadowy Cavern round the Hardening reads as dark and intense — a blue tone recorded at #001781, RGB(0, 23, 129).

#001781RGB(0, 23, 129)

HSL 229° · 100% saturation · 25% lightness

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Psychology

Dark blues project authority, depth and reliability — the colour of deep water, the night sky, and tailored suits.

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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

In practical terms, a dark blue like this works well 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

In terms of colour combinations, complement this blue with amber and warm orange for high-contrast energy, or stay within blue-green and violet neighbours for a serene, cohesive feel.

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Color Categories

Color formats

Name
Shadowy Cavern round the Hardening
HEX
#001781
RGB
rgb(0,23,129)
RGB%
rgb(0%,9%,50.6%)
HSL
hsl(229,100%,25%)
HSV
hsv(229,100%,51%)
CMYK
cmyk(100,82,0,49)
LAB
lab(16,38,-59)
LCH
lch(16,70,303)
sRGB
(0,0.09,0.506)
HEX8
#001781ff
CSS Name
Decimal
000023129

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Color variants

Color info

Lightness
25%
Saturation
100%
Hue
229°
Chroma
70
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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