#3f3f43

Color #3f3f43

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 7.1 Nearest Tailwind class zinc-700 #3f3f46 · ΔE 1.8

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Conversions

HEX

#3f3f43

RGB

rgb(63, 63, 67)

HSL

hsl(240, 3.1%, 25.5%)

HSV / HSB

hsv(240, 6%, 26.3%)

CMYK

cmyk(6%, 6%, 0%, 73.7%)

LAB

lab(26.78, 0.92, -2.44)

LCH

lch(26.78, 2.61, 290.66)

OKLCH

oklch(36.9%, 0.0068, 286.29)

HWB

hwb(240, 24.7%, 73.7%)

Harmony colors

Complementary

#43433f

Analogous

#3f4143

#3f3f43

#413f43

Triadic

#3f3f43

#433f3f

#3f433f

Split-complementary

#3f3f43

#43413f

#41433f

Tetradic

#3f3f43

#433f43

#43433f

#3f433f

Square

#3f3f43

#433f41

#43433f

#3f4341

Shades

Color #3f3f43 mixed toward black.

#353538

#2a2a2d

#202022

#151516

#0b0b0b

Tints

Color #3f3f43 mixed toward white.

#5e5e64

#7c7c84

#9d9da3

#bebec2

#dedee0

Tones

Color #3f3f43 mixed toward gray.

#3f3f43

#404042

#414141

Accessibility

Aa White text on this color

10.48:1

Aa Black text on this color

2:1

White text reads better on this background (10.48:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3f3f42 · ΔE 0.6

Deuteranopia

#3f3f42 · ΔE 0.6

Tritanopia

#3f4141 · ΔE 3.3

Achromatopsia

#3f3f3f · ΔE 2.6

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

Code

CSS

background-color: #3f3f43;

Tailwind (arbitrary value)

bg-[#3f3f43]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#3f3f43 (#3f3f43) is rgb(63, 63, 67) in RGB.

No, #3f3f43 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 #3f3f43, or check how it holds up for accessibility.

Generate a palette → Check contrast