#2b3551

Color #2b3551

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 14.21 Nearest Tailwind class slate-800 #1d293d · ΔE 5.4

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Conversions

HEX

#2b3551

RGB

rgb(43, 53, 81)

HSL

hsl(224.2, 30.6%, 24.3%)

HSV / HSB

hsv(224.2, 46.9%, 31.8%)

CMYK

cmyk(46.9%, 34.6%, 0%, 68.2%)

LAB

lab(22.49, 4.37, -18.4)

LCH

lch(22.49, 18.91, 283.36)

OKLCH

oklch(33.3%, 0.0515, 268.55)

HWB

hwb(224.2, 16.9%, 68.2%)

Harmony colors

Complementary

#51472b

Analogous

#2b4851

#2b3551

#342b51

Triadic

#2b3551

#512b35

#35512b

Split-complementary

#2b3551

#51342b

#48512b

Tetradic

#2b3551

#472b51

#51472b

#35512b

Square

#2b3551

#512b48

#51472b

#2b5134

Shades

Color #2b3551 mixed toward black.

#242c43

#1d2336

#161a28

#0e121b

#07090d

Tints

Color #2b3551 mixed toward white.

#41517b

#586ca5

#8191bc

#abb5d2

#d5dae9

Tones

Color #2b3551 mixed toward gray.

#2e364e

#31384b

#343947

#383b44

#3b3c41

Accessibility

Aa White text on this color

12.13:1

Aa Black text on this color

1.73:1

White text reads better on this background (12.13:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#30304b · ΔE 4.2

Deuteranopia

#2f2e4a · ΔE 4.8

Tritanopia

#2c4645 · ΔE 18.8

Achromatopsia

#363636 · ΔE 13.6

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

Code

CSS

background-color: #2b3551;

Tailwind (arbitrary value)

bg-[#2b3551]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#2b3551 (#2b3551) is rgb(43, 53, 81) in RGB.

No, #2b3551 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 #2b3551, or check how it holds up for accessibility.

Generate a palette → Check contrast