The Brook Inside Plainspoken Rolling

#1d4bad RGB(29,75,173)

About this color

The Brook Inside Plainspoken Rolling is a medium-dark blue with a vivid character, positioned at #1d4bad on the color spectrum.

#1d4badRGB(29, 75, 173)

HSL 221° · 71% saturation · 40% lightness

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Psychology

Mid blue dominates corporate and tech branding precisely because it reads as dependable without being cold.

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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

In design terms, a mid-toned blue like this handles brand accents, data visualisation series, and illustrative elements. Its middle lightness gives it presence on both white and dark backgrounds.

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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 Brook Inside Plainspoken Rolling
HEX
#1d4bad
RGB
rgb(29,75,173)
RGB%
rgb(11.4%,29.4%,67.8%)
HSL
hsl(221,71%,40%)
HSV
hsv(221,83%,68%)
CMYK
cmyk(83,57,0,32)
LAB
lab(35,22,-57)
LCH
lch(35,61,291)
sRGB
(0.114,0.294,0.678)
HEX8
#1d4badff
CSS Name
Decimal
029075173

Similar colors

Color variants

Color info

Lightness
40%
Saturation
71%
Hue
221°
Chroma
61
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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