What the Earthen Border circa Measuring

#1d5a9f RGB(29,90,159)

About this color

What the Earthen Border circa Measuring settles into a medium-dark blue territory with a vivid quality that feels cool — captured at #1d5a9f, RGB(29, 90, 159).

#1d5a9fRGB(29, 90, 159)

HSL 212° · 69% saturation · 37% 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 the Earthen Border circa Measuring
HEX
#1d5a9f
RGB
rgb(29,90,159)
RGB%
rgb(11.4%,35.3%,62.4%)
HSL
hsl(212,69%,37%)
HSV
hsv(212,82%,62%)
CMYK
cmyk(82,43,0,38)
LAB
lab(38,7,-43)
LCH
lch(38,44,279)
sRGB
(0.114,0.353,0.624)
HEX8
#1d5a9fff
CSS Name
Decimal
029090159

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Color variants

Color info

Lightness
37%
Saturation
69%
Hue
212°
Chroma
44
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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