#181f52

Color #181f52

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 21.78 Nearest Tailwind class blue-950 #162456 · ΔE 2

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Conversions

HEX

#181f52

RGB

rgb(24, 31, 82)

HSL

hsl(232.8, 54.7%, 20.8%)

HSV / HSB

hsv(232.8, 70.7%, 32.2%)

CMYK

cmyk(70.7%, 62.2%, 0%, 67.8%)

LAB

lab(14.31, 15.84, -32.21)

LCH

lch(14.31, 35.89, 296.19)

OKLCH

oklch(26.7%, 0.0927, 272.6)

HWB

hwb(232.8, 9.4%, 67.8%)

Harmony colors

Complementary

#524b18

Analogous

#183c52

#181f52

#2e1852

Triadic

#181f52

#52181f

#1f5218

Split-complementary

#181f52

#522e18

#3c5218

Tetradic

#181f52

#4b1852

#524b18

#1f5218

Square

#181f52

#52183c

#524b18

#18522e

Shades

Color #181f52 mixed toward black.

#141a44

#101537

#0c0f29

#080a1b

#04050e

Tints

Color #181f52 mixed toward white.

#273386

#3746ba

#6370d1

#97a0e1

#cbcff0

Tones

Color #181f52 mixed toward gray.

#1d234d

#222648

#272a44

#2b2e3f

#30313a

Accessibility

Aa White text on this color

15.48:1

Aa Black text on this color

1.36:1

White text reads better on this background (15.48:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1b1b49 · ΔE 2.4

Deuteranopia

#1b1a47 · ΔE 2.9

Tritanopia

#184240 · ΔE 26.5

Achromatopsia

#242424 · ΔE 20.7

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #181f52;

Tailwind (arbitrary value)

bg-[#181f52]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#181f52 (#181f52) is rgb(24, 31, 82) in RGB.

No, #181f52 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #181f52, or check how it holds up for accessibility.

Generate a palette → Check contrast