Sure Border off the Casting

#0815ba RGB(8,21,186)

About this color

Sure Border off the Casting settles into a medium-dark blue territory with a intense quality that feels cool — captured at #0815ba, RGB(8, 21, 186).

#0815baRGB(8, 21, 186)

HSL 236° · 92% saturation · 38% lightness

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Psychology

In its darkest registers blue becomes serious and introspective: trustworthy, professional, slightly austere.

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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

From a design perspective, this shade excels as a background for light-coloured text, as a deep accent stripe, or as an anchoring tone in dark-mode interfaces. It pairs naturally with off-whites, warm creams, and metallic highlights.

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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
Sure Border off the Casting
HEX
#0815ba
RGB
rgb(8,21,186)
RGB%
rgb(3.1%,8.2%,72.9%)
HSL
hsl(236,92%,38%)
HSV
hsv(236,96%,73%)
CMYK
cmyk(96,89,0,27)
LAB
lab(24,57,-82)
LCH
lch(24,100,305)
sRGB
(0.031,0.082,0.729)
HEX8
#0815baff
CSS Name
Decimal
008021186

Similar colors

Color variants

Color info

Lightness
38%
Saturation
92%
Hue
236°
Chroma
100
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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