Reserved Atoll beneath Steadying

#154a8c RGB(21,74,140)

About this color

Reserved Atoll beneath Steadying settles into a dark blue territory with a vivid quality that feels cool — captured at #154a8c, RGB(21, 74, 140).

#154a8cRGB(21, 74, 140)

HSL 213° · 74% saturation · 32% lightness

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Psychology

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

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History

In Japanese aesthetics, blue — particularly indigo — has been a central colour for centuries: the slow-dyed textiles of Tokushima remain prized for their depth and permanence.

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Design use

From a design perspective, this shade excels as a primary background in dark themes, a strong border or divider, or a headline colour against a light surface. Combine with lighter tints of the same hue for a cohesive palette.

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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
Reserved Atoll beneath Steadying
HEX
#154a8c
RGB
rgb(21,74,140)
RGB%
rgb(8.2%,29%,54.9%)
HSL
hsl(213,74%,32%)
HSV
hsv(213,85%,55%)
CMYK
cmyk(85,47,0,45)
LAB
lab(32,9,-41)
LCH
lch(32,42,282)
sRGB
(0.082,0.29,0.549)
HEX8
#154a8cff
CSS Name
Decimal
021074140

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Color variants

Color info

Lightness
32%
Saturation
74%
Hue
213°
Chroma
42
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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