What Subtle Atoll until Sounding

#313f84 RGB(49,63,132)

About this color

What Subtle Atoll until Sounding settles into a medium-dark blue territory with a moderate quality that feels cool — captured at #313f84, RGB(49, 63, 132).

#313f84RGB(49, 63, 132)

HSL 230° · 46% saturation · 35% 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
What Subtle Atoll until Sounding
HEX
#313f84
RGB
rgb(49,63,132)
RGB%
rgb(19.2%,24.7%,51.8%)
HSL
hsl(230,46%,35%)
HSV
hsv(230,63%,52%)
CMYK
cmyk(63,52,0,48)
LAB
lab(29,17,-41)
LCH
lch(29,44,293)
sRGB
(0.192,0.247,0.518)
HEX8
#313f84ff
CSS Name
Decimal
049063132

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Color variants

Color info

Lightness
35%
Saturation
46%
Hue
230°
Chroma
44
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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