Rusted Carbon underneath the Stilling

#15285a RGB(21,40,90)

About this color

Rusted Carbon underneath the Stilling is a vivid, dark blue tone, fixed at #15285a in the RGB color space.

#15285aRGB(21, 40, 90)

HSL 223° · 62% saturation · 22% 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
Rusted Carbon underneath the Stilling
HEX
#15285a
RGB
rgb(21,40,90)
RGB%
rgb(8.2%,15.7%,35.3%)
HSL
hsl(223,62%,22%)
HSV
hsv(223,77%,35%)
CMYK
cmyk(77,56,0,65)
LAB
lab(18,12,-32)
LCH
lch(18,34,291)
sRGB
(0.082,0.157,0.353)
HEX8
#15285aff
CSS Name
Decimal
021040090

Similar colors

Color variants

Color info

Lightness
22%
Saturation
62%
Hue
223°
Chroma
34
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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