Subtle Arch across the Arching

#00309a RGB(0,48,154)

About this color

Subtle Arch across the Arching carries its coordinates at #00309a: a dark blue with intense saturation.

#00309aRGB(0, 48, 154)

HSL 221° · 100% saturation · 30% 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

As a dark tone, it naturally lends itself to 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

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
Subtle Arch across the Arching
HEX
#00309a
RGB
rgb(0,48,154)
RGB%
rgb(0%,18.8%,60.4%)
HSL
hsl(221,100%,30%)
HSV
hsv(221,100%,60%)
CMYK
cmyk(100,69,0,40)
LAB
lab(25,31,-61)
LCH
lch(25,68,297)
sRGB
(0,0.188,0.604)
HEX8
#00309aff
CSS Name
Decimal
000048154

Similar colors

Color variants

Color info

Lightness
30%
Saturation
100%
Hue
221°
Chroma
68
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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