#405e71

Color #405e71

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 12.01 Nearest Tailwind class slate-600 #45556c · ΔE 6.6

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Conversions

HEX

#405e71

RGB

rgb(64, 94, 113)

HSL

hsl(203.3, 27.7%, 34.7%)

HSV / HSB

hsv(203.3, 43.4%, 44.3%)

CMYK

cmyk(43.4%, 16.8%, 0%, 55.7%)

LAB

lab(38.35, -5.57, -14.25)

LCH

lch(38.35, 15.3, 248.65)

OKLCH

oklch(46.6%, 0.047, 236.99)

HWB

hwb(203.3, 25.1%, 55.7%)

Harmony colors

Complementary

#715340

Analogous

#40716c

#405e71

#404571

Triadic

#405e71

#71405e

#5e7140

Split-complementary

#405e71

#714045

#716c40

Tetradic

#405e71

#534071

#715340

#5e7140

Square

#405e71

#6c4071

#715340

#457140

Shades

Color #405e71 mixed toward black.

#354e5e

#2b3f4b

#202f38

#151f26

#0b1013

Tints

Color #405e71 mixed toward white.

#547b94

#7197af

#95b1c3

#b8cbd7

#dce5eb

Tones

Color #405e71 mixed toward gray.

#445d6d

#485c69

#4c5b65

#505a61

#54595d

Accessibility

Aa White text on this color

6.87:1

Aa Black text on this color

3.06:1

White text reads better on this background (6.87:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4f4f6d · ΔE 14.8

Deuteranopia

#4d4b6c · ΔE 16

Tritanopia

#426969 · ΔE 11.3

Achromatopsia

#5a5a5a · ΔE 12

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

Code

CSS

background-color: #405e71;

Tailwind (arbitrary value)

bg-[#405e71]

Related colors

Light Sky Blue #87cefa

Charcoal #36454f

Steel Blue #4682b4

Alice Blue #f0f8ff

Sky Blue #87ceeb

Dodger Blue #1e90ff

Frequently asked questions

#405e71 (#405e71) is rgb(64, 94, 113) in RGB.

No, #405e71 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 #405e71, or check how it holds up for accessibility.

Generate a palette → Check contrast