When Mellowed Atoll toward Arching

#143db3 RGB(20,61,179)

About this color

When Mellowed Atoll toward Arching settles into a medium-dark blue territory with a intense quality that feels cool — captured at #143db3, RGB(20, 61, 179).

#143db3RGB(20, 61, 179)

HSL 225° · 80% saturation · 39% 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
When Mellowed Atoll toward Arching
HEX
#143db3
RGB
rgb(20,61,179)
RGB%
rgb(7.8%,23.9%,70.2%)
HSL
hsl(225,80%,39%)
HSV
hsv(225,89%,70%)
CMYK
cmyk(89,66,0,30)
LAB
lab(31,33,-66)
LCH
lch(31,74,297)
sRGB
(0.078,0.239,0.702)
HEX8
#143db3ff
CSS Name
Decimal
020061179

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Color variants

Color info

Lightness
39%
Saturation
80%
Hue
225°
Chroma
74
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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