The Border upon Slow Building

#91101d RGB(145,16,29)

About this color

The Border upon Slow Building is a intense, dark red tone, fixed at #91101d in the RGB color space.

#91101dRGB(145, 16, 29)

HSL 354° · 80% saturation · 32% lightness

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Psychology

In its darker registers red becomes serious: ambition, gravitas, and a certain controlled intensity.

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History

In ancient Rome, a particular shade of red — minium — was so valued that the scribes who illuminated manuscripts were called 'rubricators' after the colour they used for headings.

✏️

Design use

As a dark tone, it naturally lends itself to 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

For palette building, this red sits opposite blue-green on the colour wheel — that tension creates visual energy. For calmer pairings, warm greys and off-whites let it breathe.

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Color formats

Name
The Border upon Slow Building
HEX
#91101d
RGB
rgb(145,16,29)
RGB%
rgb(56.9%,6.3%,11.4%)
HSL
hsl(354,80%,32%)
HSV
hsv(354,89%,57%)
CMYK
cmyk(0,89,80,43)
LAB
lab(31,51,30)
LCH
lch(31,59,30)
sRGB
(0.569,0.063,0.114)
HEX8
#91101dff
CSS Name
Decimal
145016029

Similar colors

Color variants

Color info

Lightness
32%
Saturation
80%
Hue
354°
Chroma
59
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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