Umbral Basalt beneath the Overshadowing

#101321 RGB(16,19,33)

About this color

Umbral Basalt beneath the Overshadowing carries its coordinates at #101321: a deep blue with moderate saturation.

#101321RGB(16, 19, 33)

HSL 229° · 35% saturation · 10% 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

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 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
Umbral Basalt beneath the Overshadowing
HEX
#101321
RGB
rgb(16,19,33)
RGB%
rgb(6.3%,7.5%,12.9%)
HSL
hsl(229,35%,10%)
HSV
hsv(229,52%,13%)
CMYK
cmyk(52,42,0,87)
LAB
lab(6,3,-10)
LCH
lch(6,10,287)
sRGB
(0.063,0.075,0.129)
HEX8
#101321ff
CSS Name
Decimal
016019033

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Color variants

Color info

Lightness
10%
Saturation
35%
Hue
229°
Chroma
10
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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