The Forthcoming Arch behind Forming

#173d9b RGB(23,61,155)

About this color

The Forthcoming Arch behind Forming reads as medium-dark and vivid — a blue tone recorded at #173d9b, RGB(23, 61, 155).

#173d9bRGB(23, 61, 155)

HSL 223° · 74% saturation · 35% lightness

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Psychology

Dark blues project authority, depth and reliability — the colour of deep water, the night sky, and tailored suits.

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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

In practical terms, a medium-dark blue like this works well 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

In terms of colour combinations, complement this blue with amber and warm orange for high-contrast energy, or stay within blue-green and violet neighbours for a serene, cohesive feel.

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Color Categories

Color formats

Name
The Forthcoming Arch behind Forming
HEX
#173d9b
RGB
rgb(23,61,155)
RGB%
rgb(9%,23.9%,60.8%)
HSL
hsl(223,74%,35%)
HSV
hsv(223,85%,61%)
CMYK
cmyk(85,61,0,39)
LAB
lab(29,24,-55)
LCH
lch(29,60,294)
sRGB
(0.09,0.239,0.608)
HEX8
#173d9bff
CSS Name
Decimal
023061155

Similar colors

Color variants

Color info

Lightness
35%
Saturation
74%
Hue
223°
Chroma
60
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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