#3b5981

Color #3b5981

A muted dark blue.

Closest named color Steel Blue #4682b4 · ΔE 17.37 Nearest Tailwind class slate-600 #45556c · ΔE 5.4

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Conversions

HEX

#3b5981

RGB

rgb(59, 89, 129)

HSL

hsl(214.3, 37.2%, 36.9%)

HSV / HSB

hsv(214.3, 54.3%, 50.6%)

CMYK

cmyk(54.3%, 31%, 0%, 49.4%)

LAB

lab(37.22, 1.3, -25.84)

LCH

lch(37.22, 25.87, 272.88)

OKLCH

oklch(45.9%, 0.0748, 255.93)

HWB

hwb(214.3, 23.1%, 49.4%)

Harmony colors

Complementary

#81633b

Analogous

#3b7c81

#3b5981

#403b81

Triadic

#3b5981

#813b59

#59813b

Split-complementary

#3b5981

#81403b

#7c813b

Tetradic

#3b5981

#633b81

#81633b

#59813b

Square

#3b5981

#813b7c

#81633b

#3b8140

Shades

Color #3b5981 mixed toward black.

#314a6c

#273b56

#1e2d41

#141e2b

#0a0f16

Tints

Color #3b5981 mixed toward white.

#4c72a6

#6c8ebc

#91aacc

#b5c7dd

#dae3ee

Tones

Color #3b5981 mixed toward gray.

#415a7b

#475b75

#4d5c70

#525c6a

#585d64

Accessibility

Aa White text on this color

7.16:1

Aa Black text on this color

2.93:1

White text reads better on this background (7.16:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#4a4a79 · ΔE 9.4

Deuteranopia

#484677 · ΔE 10.2

Tritanopia

#3d7270 · ΔE 21.3

Achromatopsia

#585858 · ΔE 16.4

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

Code

CSS

background-color: #3b5981;

Tailwind (arbitrary value)

bg-[#3b5981]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#3b5981 (#3b5981) is rgb(59, 89, 129) in RGB.

No, #3b5981 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 #3b5981, or check how it holds up for accessibility.

Generate a palette → Check contrast