#3f474f

Color #3f474f

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 3.18 Nearest Tailwind class mist-700 #394447 · ΔE 4.1

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Conversions

HEX

#3f474f

RGB

rgb(63, 71, 79)

HSL

hsl(210, 11.3%, 27.8%)

HSV / HSB

hsv(210, 20.3%, 31%)

CMYK

cmyk(20.3%, 10.1%, 0%, 69%)

LAB

lab(29.73, -1.25, -5.88)

LCH

lch(29.73, 6.01, 258)

OKLCH

oklch(39.4%, 0.0171, 248.39)

HWB

hwb(210, 24.7%, 69%)

Harmony colors

Complementary

#4f473f

Analogous

#3f4f4f

#3f474f

#3f3f4f

Triadic

#3f474f

#4f3f47

#474f3f

Split-complementary

#3f474f

#4f3f3f

#4f4f3f

Tetradic

#3f474f

#473f4f

#4f473f

#474f3f

Square

#3f474f

#4f3f4f

#4f473f

#3f4f3f

Shades

Color #3f474f mixed toward black.

#343b42

#2a2f35

#1f2327

#15181a

#0a0c0d

Tints

Color #3f474f mixed toward white.

#5a6671

#768492

#99a3ad

#bbc2c9

#dde0e4

Tones

Color #3f474f mixed toward gray.

#40474e

#42474c

#43474b

#44474a

#464748

Accessibility

Aa White text on this color

9.44:1

Aa Black text on this color

2.23:1

White text reads better on this background (9.44:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#43434d · ΔE 5.1

Deuteranopia

#42424d · ΔE 5.5

Tritanopia

#3f4c4b · ΔE 6.8

Achromatopsia

#464646 · ΔE 5.4

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

Code

CSS

background-color: #3f474f;

Tailwind (arbitrary value)

bg-[#3f474f]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Light Steel Blue #b0c4de

Frequently asked questions

#3f474f (#3f474f) is rgb(63, 71, 79) in RGB.

No, #3f474f 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 #3f474f, or check how it holds up for accessibility.

Generate a palette → Check contrast