#231d56

Color #231d56

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 18.58 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 1.8

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Conversions

HEX

#231d56

RGB

rgb(35, 29, 86)

HSL

hsl(246.3, 49.6%, 22.5%)

HSV / HSB

hsv(246.3, 66.3%, 33.7%)

CMYK

cmyk(59.3%, 66.3%, 0%, 66.3%)

LAB

lab(15, 21.04, -33.75)

LCH

lch(15, 39.77, 301.94)

OKLCH

oklch(27.6%, 0.0993, 282.51)

HWB

hwb(246.3, 11.4%, 66.3%)

Harmony colors

Complementary

#50561d

Analogous

#1d3356

#231d56

#3f1d56

Triadic

#231d56

#56231d

#1d5623

Split-complementary

#231d56

#563f1d

#33561d

Tetradic

#231d56

#561d50

#50561d

#1d5623

Square

#231d56

#561d33

#50561d

#1d563f

Shades

Color #231d56 mixed toward black.

#1d1848

#171339

#110e2b

#0c0a1d

#06050e

Tints

Color #231d56 mixed toward white.

#372e87

#4b3eb8

#756bcd

#a39cde

#d1ceee

Tones

Color #231d56 mixed toward gray.

#272251

#2a264c

#2e2b48

#323043

#36353e

Accessibility

Aa White text on this color

15.2:1

Aa Black text on this color

1.38:1

White text reads better on this background (15.2:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#21204d · ΔE 3

Deuteranopia

#21214a · ΔE 4.1

Tritanopia

#234442 · ΔE 26.6

Achromatopsia

#262626 · ΔE 22

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

Code

CSS

background-color: #231d56;

Tailwind (arbitrary value)

bg-[#231d56]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#231d56 (#231d56) is rgb(35, 29, 86) in RGB.

No, #231d56 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 #231d56, or check how it holds up for accessibility.

Generate a palette → Check contrast