#3a21b8

Color #3a21b8

A moderately saturated medium blue.

Closest named color Dark Blue #00008b · ΔE 14.63 Nearest Tailwind class indigo-800 #372aac · ΔE 2.4

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#3a21b8

RGB

rgb(58, 33, 184)

HSL

hsl(249.9, 69.6%, 42.5%)

HSV / HSB

hsv(249.9, 82.1%, 72.2%)

CMYK

cmyk(68.5%, 82.1%, 0%, 27.8%)

LAB

lab(27.97, 53.67, -74.05)

LCH

lch(27.97, 91.45, 305.93)

OKLCH

oklch(40.3%, 0.216, 278.04)

HWB

hwb(249.9, 12.9%, 27.8%)

Harmony colors

Complementary

#9fb821

Analogous

#2153b8

#3a21b8

#8521b8

Triadic

#3a21b8

#b83a21

#21b83a

Split-complementary

#3a21b8

#b88521

#53b821

Tetradic

#3a21b8

#b8219f

#9fb821

#21b83a

Square

#3a21b8

#b82153

#9fb821

#21b885

Shades

Color #3a21b8 mixed toward black.

#301b99

#27167b

#1d105c

#130b3d

#0a051f

Tints

Color #3a21b8 mixed toward white.

#4c30da

#7059e1

#9483e9

#b7acf0

#dbd6f8

Tones

Color #3a21b8 mixed toward gray.

#422eab

#4b3a9f

#534792

#5c5386

#646079

Accessibility

Aa White text on this color

10.05:1

Aa Black text on this color

2.09:1

White text reads better on this background (10.05:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3131a3 · ΔE 4.8

Deuteranopia

#32349e · ΔE 5.9

Tritanopia

#39908b · ΔE 43.1

Achromatopsia

#424242 · ΔE 29.9

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

Code

CSS

background-color: #3a21b8;

Tailwind (arbitrary value)

bg-[#3a21b8]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#3a21b8 (#3a21b8) is rgb(58, 33, 184) in RGB.

No, #3a21b8 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 #3a21b8, or check how it holds up for accessibility.

Generate a palette → Check contrast