#181031

Color #181031

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 25.9 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 6.4

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Conversions

HEX

#181031

RGB

rgb(24, 16, 49)

HSL

hsl(254.5, 50.8%, 12.7%)

HSV / HSB

hsv(254.5, 67.3%, 19.2%)

CMYK

cmyk(51%, 67.3%, 0%, 80.8%)

LAB

lab(7.1, 14.06, -20.56)

LCH

lch(7.1, 24.91, 304.37)

OKLCH

oklch(20.5%, 0.0629, 290.97)

HWB

hwb(254.5, 6.3%, 80.8%)

Harmony colors

Complementary

#293110

Analogous

#101831

#181031

#281031

Triadic

#181031

#311810

#103118

Split-complementary

#181031

#312810

#183110

Tetradic

#181031

#311029

#293110

#103118

Square

#181031

#311018

#293110

#103128

Shades

Color #181031 mixed toward black.

#140d29

#100b21

#0c0818

#080510

#040308

Tints

Color #181031 mixed toward white.

#332269

#4f34a1

#7257c8

#a18fda

#d0c7ed

Tones

Color #181031 mixed toward gray.

#19132e

#1b152b

#1c1829

#1e1b26

#1f1e23

Accessibility

Aa White text on this color

18.15:1

Aa Black text on this color

1.16:1

White text reads better on this background (18.15:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#15152b · ΔE 5.4

Deuteranopia

#15162a · ΔE 6.6

Tritanopia

#182625 · ΔE 22.2

Achromatopsia

#161616 · ΔE 17.6

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

Code

CSS

background-color: #181031;

Tailwind (arbitrary value)

bg-[#181031]

Related colors

Medium Purple #9370db

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#181031 (#181031) is rgb(24, 16, 49) in RGB.

No, #181031 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 #181031, or check how it holds up for accessibility.

Generate a palette → Check contrast