Dim Boulder atop Descending

#153e66 RGB(21,62,102)

About this color

Dim Boulder atop Descending settles into a dark blue territory with a vivid quality that feels cool — captured at #153e66, RGB(21, 62, 102).

#153e66RGB(21, 62, 102)

HSL 210° · 66% saturation · 24% 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
Dim Boulder atop Descending
HEX
#153e66
RGB
rgb(21,62,102)
RGB%
rgb(8.2%,24.3%,40%)
HSL
hsl(210,66%,24%)
HSV
hsv(210,79%,40%)
CMYK
cmyk(79,39,0,60)
LAB
lab(25,1,-28)
LCH
lch(25,28,272)
sRGB
(0.082,0.243,0.4)
HEX8
#153e66ff
CSS Name
Decimal
021062102

Similar colors

Color variants

Color info

Lightness
24%
Saturation
66%
Hue
210°
Chroma
28
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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