#231b89

Color #231b89

A moderately saturated dark blue.

Closest named color Navy #000080 · ΔE 11.62 Nearest Tailwind class indigo-900 #312c85 · ΔE 4.6

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Conversions

HEX

#231b89

RGB

rgb(35, 27, 137)

HSL

hsl(244.4, 67.1%, 32.2%)

HSV / HSB

hsv(244.4, 80.3%, 53.7%)

CMYK

cmyk(74.5%, 80.3%, 0%, 46.3%)

LAB

lab(19.83, 40.11, -58.93)

LCH

lch(19.83, 71.29, 304.24)

OKLCH

oklch(32.6%, 0.1709, 274.56)

HWB

hwb(244.4, 10.6%, 46.3%)

Harmony colors

Complementary

#81891b

Analogous

#1b4a89

#231b89

#5a1b89

Triadic

#231b89

#89231b

#1b8923

Split-complementary

#231b89

#895a1b

#4a891b

Tetradic

#231b89

#891b81

#81891b

#1b8923

Square

#231b89

#891b4a

#81891b

#1b895a

Shades

Color #231b89 mixed toward black.

#1d1772

#17125b

#120e45

#0c092e

#060517

Tints

Color #231b89 mixed toward white.

#2f24b9

#4a3ed9

#776fe3

#a49fec

#d2cff6

Tones

Color #231b89 mixed toward gray.

#2b2480

#332d77

#3b376e

#424064

#4a495b

Accessibility

Aa White text on this color

13.21:1

Aa Black text on this color

1.59:1

White text reads better on this background (13.21:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#202079 · ΔE 3.1

Deuteranopia

#202175 · ΔE 3.9

Tritanopia

#236b67 · ΔE 36.6

Achromatopsia

#303030 · ΔE 27.4

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

Code

CSS

background-color: #231b89;

Tailwind (arbitrary value)

bg-[#231b89]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#231b89 (#231b89) is rgb(35, 27, 137) in RGB.

No, #231b89 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 #231b89, or check how it holds up for accessibility.

Generate a palette → Check contrast