#231f3d

Color #231f3d

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 22.93 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 6.4

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Conversions

HEX

#231f3d

RGB

rgb(35, 31, 61)

HSL

hsl(248, 32.6%, 18%)

HSV / HSB

hsv(248, 49.2%, 23.9%)

CMYK

cmyk(42.6%, 49.2%, 0%, 76.1%)

LAB

lab(13.67, 10.71, -18.65)

LCH

lch(13.67, 21.51, 299.87)

OKLCH

oklch(26%, 0.0552, 288.04)

HWB

hwb(248, 12.2%, 76.1%)

Harmony colors

Complementary

#393d1f

Analogous

#1f2a3d

#231f3d

#321f3d

Triadic

#231f3d

#3d231f

#1f3d23

Split-complementary

#231f3d

#3d321f

#2a3d1f

Tetradic

#231f3d

#3d1f39

#393d1f

#1f3d23

Square

#231f3d

#3d1f2a

#393d1f

#1f3d32

Shades

Color #231f3d mixed toward black.

#1d1a33

#171529

#110f1e

#0c0a14

#06050a

Tints

Color #231f3d mixed toward white.

#3d366b

#584e99

#7d74b9

#a9a3d0

#d4d1e8

Tones

Color #231f3d mixed toward gray.

#25213a

#272438

#282635

#2a2933

#2c2b30

Accessibility

Aa White text on this color

15.73:1

Aa Black text on this color

1.33:1

White text reads better on this background (15.73:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#212137 · ΔE 3.8

Deuteranopia

#222236 · ΔE 4.7

Tritanopia

#233231 · ΔE 20.9

Achromatopsia

#232323 · ΔE 15.8

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

Code

CSS

background-color: #231f3d;

Tailwind (arbitrary value)

bg-[#231f3d]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#231f3d (#231f3d) is rgb(35, 31, 61) in RGB.

No, #231f3d 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 #231f3d, or check how it holds up for accessibility.

Generate a palette → Check contrast