When Copper Brook without Seeding

#3a42a3 RGB(58,66,163)

About this color

When Copper Brook without Seeding settles into a medium-dark blue territory with a moderate quality that feels cool — captured at #3a42a3, RGB(58, 66, 163).

#3a42a3RGB(58, 66, 163)

HSL 235° · 48% saturation · 43% 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
When Copper Brook without Seeding
HEX
#3a42a3
RGB
rgb(58,66,163)
RGB%
rgb(22.7%,25.9%,63.9%)
HSL
hsl(235,48%,43%)
HSV
hsv(235,64%,64%)
CMYK
cmyk(64,60,0,36)
LAB
lab(33,28,-54)
LCH
lch(33,61,297)
sRGB
(0.227,0.259,0.639)
HEX8
#3a42a3ff
CSS Name
Decimal
058066163

Similar colors

Color variants

Color info

Lightness
43%
Saturation
48%
Hue
235°
Chroma
61
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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