The Forbidding Boulder until Mourning

#2a305b RGB(42,48,91)

About this color

The Forbidding Boulder until Mourning settles into a dark blue territory with a moderate quality that feels cool — captured at #2a305b, RGB(42, 48, 91).

#2a305bRGB(42, 48, 91)

HSL 233° · 37% saturation · 26% 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
The Forbidding Boulder until Mourning
HEX
#2a305b
RGB
rgb(42,48,91)
RGB%
rgb(16.5%,18.8%,35.7%)
HSL
hsl(233,37%,26%)
HSV
hsv(233,54%,36%)
CMYK
cmyk(54,47,0,64)
LAB
lab(21,11,-27)
LCH
lch(21,29,292)
sRGB
(0.165,0.188,0.357)
HEX8
#2a305bff
CSS Name
Decimal
042048091

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Color variants

Color info

Lightness
26%
Saturation
37%
Hue
233°
Chroma
29
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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