#1f183a

Color #1f183a

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 27.22 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 5.2

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Conversions

HEX

#1f183a

RGB

rgb(31, 24, 58)

HSL

hsl(252.4, 41.5%, 16.1%)

HSV / HSB

hsv(252.4, 58.6%, 22.7%)

CMYK

cmyk(46.6%, 58.6%, 0%, 77.3%)

LAB

lab(10.92, 13.56, -20.92)

LCH

lch(10.92, 24.93, 302.95)

OKLCH

oklch(23.8%, 0.0632, 290.18)

HWB

hwb(252.4, 9.4%, 77.3%)

Harmony colors

Complementary

#333a18

Analogous

#18223a

#1f183a

#30183a

Triadic

#1f183a

#3a1f18

#183a1f

Split-complementary

#1f183a

#3a3018

#223a18

Tetradic

#1f183a

#3a1833

#333a18

#183a1f

Square

#1f183a

#3a1822

#333a18

#183a30

Shades

Color #1f183a mixed toward black.

#1a1430

#151027

#100c1d

#0a0813

#05040a

Tints

Color #1f183a mixed toward white.

#3a2d6d

#55429f

#7a68c0

#a69ad5

#d3cdea

Tones

Color #1f183a mixed toward gray.

#211b37

#221e34

#242132

#26232f

#27262c

Accessibility

Aa White text on this color

16.8:1

Aa Black text on this color

1.25:1

White text reads better on this background (16.8:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1c1c34 · ΔE 4.7

Deuteranopia

#1d1d32 · ΔE 6

Tritanopia

#1f2f2d · ΔE 23

Achromatopsia

#1d1d1d · ΔE 17.5

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

Code

CSS

background-color: #1f183a;

Tailwind (arbitrary value)

bg-[#1f183a]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#1f183a (#1f183a) is rgb(31, 24, 58) in RGB.

No, #1f183a is not web-safe. The nearest web-safe colors are among its tones and shades below.

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 #1f183a, or check how it holds up for accessibility.

Generate a palette → Check contrast