Sensible Bluff down Arching

#153fbc RGB(21,63,188)

About this color

Sensible Bluff down Arching is a intense, medium-dark blue tone, fixed at #153fbc in the RGB color space.

#153fbcRGB(21, 63, 188)

HSL 225° · 80% saturation · 41% 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

The ancient Egyptians were among the first to produce blue pigment artificially — Egyptian blue, made from copper and sand, coloured the walls of pharaonic tombs.

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Design use

Practically, this medium-dark blue is comfortable as accent colours, call-to-action buttons, and icon fills — it holds its own without overwhelming adjacent elements. Always check WCAG contrast ratios before using it under or over text.

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Colour pairings

For palette building, 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
Sensible Bluff down Arching
HEX
#153fbc
RGB
rgb(21,63,188)
RGB%
rgb(8.2%,24.7%,73.7%)
HSL
hsl(225,80%,41%)
HSV
hsv(225,89%,74%)
CMYK
cmyk(89,66,0,26)
LAB
lab(33,35,-69)
LCH
lch(33,77,297)
sRGB
(0.082,0.247,0.737)
HEX8
#153fbcff
CSS Name
Decimal
021063188

Similar colors

Color variants

Color info

Lightness
41%
Saturation
80%
Hue
225°
Chroma
77
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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