Grey Cavern alongside Dimming

#283a56 RGB(40,58,86)

About this color

Grey Cavern alongside Dimming settles into a dark blue territory with a moderate quality that feels cool — captured at #283a56, RGB(40, 58, 86).

#283a56RGB(40, 58, 86)

HSL 217° · 37% saturation · 25% 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
Grey Cavern alongside Dimming
HEX
#283a56
RGB
rgb(40,58,86)
RGB%
rgb(15.7%,22.7%,33.7%)
HSL
hsl(217,37%,25%)
HSV
hsv(217,53%,34%)
CMYK
cmyk(53,33,0,66)
LAB
lab(24,2,-19)
LCH
lch(24,19,276)
sRGB
(0.157,0.227,0.337)
HEX8
#283a56ff
CSS Name
Decimal
040058086

Similar colors

Color variants

Color info

Lightness
25%
Saturation
37%
Hue
217°
Chroma
19
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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