#2139ab

Color #2139ab

A moderately saturated medium blue.

Closest named color Slate Blue #6a5acd · ΔE 16.54 Nearest Tailwind class blue-800 #193cb8 · ΔE 1.9

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Conversions

HEX

#2139ab

RGB

rgb(33, 57, 171)

HSL

hsl(229.6, 67.6%, 40%)

HSV / HSB

hsv(229.6, 80.7%, 67.1%)

CMYK

cmyk(80.7%, 66.7%, 0%, 32.9%)

LAB

lab(29.88, 33.76, -63.19)

LCH

lch(29.88, 71.64, 298.11)

OKLCH

oklch(40.9%, 0.1832, 267.59)

HWB

hwb(229.6, 12.9%, 32.9%)

Harmony colors

Complementary

#ab9321

Analogous

#217eab

#2139ab

#4e21ab

Triadic

#2139ab

#ab2139

#39ab21

Split-complementary

#2139ab

#ab4e21

#7eab21

Tetradic

#2139ab

#9321ab

#ab9321

#39ab21

Square

#2139ab

#ab217e

#ab9321

#21ab4e

Shades

Color #2139ab mixed toward black.

#1c2f8e

#162672

#111c55

#0b1339

#06091c

Tints

Color #2139ab mixed toward white.

#2947d6

#546cde

#7f91e6

#aab5ee

#d4daf7

Tones

Color #2139ab mixed toward gray.

#2d409f

#384894

#444f88

#4f577d

#5b5e71

Accessibility

Aa White text on this color

9.38:1

Aa Black text on this color

2.24:1

White text reads better on this background (9.38:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2d2d99 · ΔE 4.4

Deuteranopia

#2c2a94 · ΔE 5.3

Tritanopia

#238985 · ΔE 39.1

Achromatopsia

#464646 · ΔE 27.5

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

Code

CSS

background-color: #2139ab;

Tailwind (arbitrary value)

bg-[#2139ab]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#2139ab (#2139ab) is rgb(33, 57, 171) in RGB.

No, #2139ab is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #2139ab, or check how it holds up for accessibility.

Generate a palette → Check contrast