Sightless Basalt along the Sapping

#1b155a RGB(27,21,90)

About this color

Sightless Basalt along the Sapping is a dark blue with a vivid character, positioned at #1b155a on the color spectrum.

#1b155aRGB(27, 21, 90)

HSL 245° · 62% saturation · 22% 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
Sightless Basalt along the Sapping
HEX
#1b155a
RGB
rgb(27,21,90)
RGB%
rgb(10.6%,8.2%,35.3%)
HSL
hsl(245,62%,22%)
HSV
hsv(245,77%,35%)
CMYK
cmyk(70,77,0,65)
LAB
lab(13,26,-40)
LCH
lch(13,48,303)
sRGB
(0.106,0.082,0.353)
HEX8
#1b155aff
CSS Name
Decimal
027021090

Similar colors

Color variants

Color info

Lightness
22%
Saturation
62%
Hue
245°
Chroma
48
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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