#3f5368

Color #3f5368

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 9.11 Nearest Tailwind class slate-600 #45556c · ΔE 2.4

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Conversions

HEX

#3f5368

RGB

rgb(63, 83, 104)

HSL

hsl(210.7, 24.6%, 32.7%)

HSV / HSB

hsv(210.7, 39.4%, 40.8%)

CMYK

cmyk(39.4%, 20.2%, 0%, 59.2%)

LAB

lab(34.48, -1.8, -14.58)

LCH

lch(34.48, 14.69, 262.96)

OKLCH

oklch(43.4%, 0.0429, 250.09)

HWB

hwb(210.7, 24.7%, 59.2%)

Harmony colors

Complementary

#68543f

Analogous

#3f6768

#3f5368

#3f3f68

Triadic

#3f5368

#683f53

#53683f

Split-complementary

#3f5368

#683f3f

#67683f

Tetradic

#3f5368

#543f68

#68543f

#53683f

Square

#3f5368

#683f67

#68543f

#3f683f

Shades

Color #3f5368 mixed toward black.

#344557

#2a3745

#1f2934

#151c23

#0a0e11

Tints

Color #3f5368 mixed toward white.

#546f8c

#708ca9

#94a9be

#b8c5d4

#dbe2e9

Tones

Color #3f5368 mixed toward gray.

#425364

#465361

#49535e

#4d535a

#505357

Accessibility

Aa White text on this color

7.93:1

Aa Black text on this color

2.65:1

White text reads better on this background (7.93:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#484963 · ΔE 9.8

Deuteranopia

#474662 · ΔE 11.1

Tritanopia

#40605f · ΔE 13.9

Achromatopsia

#515151 · ΔE 11.1

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

Code

CSS

background-color: #3f5368;

Tailwind (arbitrary value)

bg-[#3f5368]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Light Steel Blue #b0c4de

Steel Blue #4682b4

Frequently asked questions

#3f5368 (#3f5368) is rgb(63, 83, 104) in RGB.

No, #3f5368 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 #3f5368, or check how it holds up for accessibility.

Generate a palette → Check contrast