Reserved Brook amidst Rounding

#646cb6 RGB(100,108,182)

About this color

Reserved Brook amidst Rounding settles into a medium blue territory with a moderate quality that feels cool — captured at #646cb6, RGB(100, 108, 182).

#646cb6RGB(100, 108, 182)

HSL 234° · 36% saturation · 55% 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
Reserved Brook amidst Rounding
HEX
#646cb6
RGB
rgb(100,108,182)
RGB%
rgb(39.2%,42.4%,71.4%)
HSL
hsl(234,36%,55%)
HSV
hsv(234,45%,71%)
CMYK
cmyk(45,41,0,29)
LAB
lab(48,17,-40)
LCH
lch(48,43,293)
sRGB
(0.392,0.424,0.714)
HEX8
#646cb6ff
CSS Name
Decimal
100108182

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Color variants

Color info

Lightness
55%
Saturation
36%
Hue
234°
Chroma
43
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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