#231d40

Color #231d40

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 26.07 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 4.8

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Conversions

HEX

#231d40

RGB

rgb(35, 29, 64)

HSL

hsl(250.3, 37.6%, 18.2%)

HSV / HSB

hsv(250.3, 54.7%, 25.1%)

CMYK

cmyk(45.3%, 54.7%, 0%, 74.9%)

LAB

lab(13.27, 13.2, -21.4)

LCH

lch(13.27, 25.14, 301.67)

OKLCH

oklch(25.8%, 0.0641, 288.94)

HWB

hwb(250.3, 11.4%, 74.9%)

Harmony colors

Complementary

#3a401d

Analogous

#1d2840

#231d40

#341d40

Triadic

#231d40

#40231d

#1d4023

Split-complementary

#231d40

#40341d

#28401d

Tetradic

#231d40

#401d3a

#3a401d

#1d4023

Square

#231d40

#401d28

#3a401d

#1d4034

Shades

Color #231d40 mixed toward black.

#1d1835

#17132b

#110e20

#0c0a15

#06050b

Tints

Color #231d40 mixed toward white.

#3d3370

#5748a0

#7d6fbe

#a89fd4

#d4cfe9

Tones

Color #231d40 mixed toward gray.

#25203d

#27233a

#292637

#2b2934

#2d2c31

Accessibility

Aa White text on this color

15.89:1

Aa Black text on this color

1.32:1

White text reads better on this background (15.89:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#21203a · ΔE 3.8

Deuteranopia

#212138 · ΔE 5.2

Tritanopia

#233433 · ΔE 22.5

Achromatopsia

#222222 · ΔE 17.5

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

Code

CSS

background-color: #231d40;

Tailwind (arbitrary value)

bg-[#231d40]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#231d40 (#231d40) is rgb(35, 29, 64) in RGB.

No, #231d40 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 #231d40, or check how it holds up for accessibility.

Generate a palette → Check contrast