#3f454e

Color #3f454e

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 3.54 Nearest Tailwind class zinc-700 #3f3f46 · ΔE 3.6

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Conversions

HEX

#3f454e

RGB

rgb(63, 69, 78)

HSL

hsl(216, 10.6%, 27.6%)

HSV / HSB

hsv(216, 19.2%, 30.6%)

CMYK

cmyk(19.2%, 11.5%, 0%, 69.4%)

LAB

lab(29.06, -0.23, -6.23)

LCH

lch(29.06, 6.23, 267.89)

OKLCH

oklch(38.8%, 0.0173, 258.3)

HWB

hwb(216, 24.7%, 69.4%)

Harmony colors

Complementary

#4e483f

Analogous

#3f4c4e

#3f454e

#403f4e

Triadic

#3f454e

#4e3f45

#454e3f

Split-complementary

#3f454e

#4e403f

#4c4e3f

Tetradic

#3f454e

#483f4e

#4e483f

#454e3f

Square

#3f454e

#4e3f4c

#4e483f

#3f4e40

Shades

Color #3f454e mixed toward black.

#343941

#2a2e34

#1f2227

#15171a

#0a0b0d

Tints

Color #3f454e mixed toward white.

#5a6370

#778191

#99a1ac

#bbc0c8

#dde0e3

Tones

Color #3f454e mixed toward gray.

#40454d

#41454b

#43464a

#444649

#454648

Accessibility

Aa White text on this color

9.67:1

Aa Black text on this color

2.17:1

White text reads better on this background (9.67:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#42424c · ΔE 3.7

Deuteranopia

#41414b · ΔE 3.8

Tritanopia

#3f4a4a · ΔE 6.9

Achromatopsia

#444444 · ΔE 5.5

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

Code

CSS

background-color: #3f454e;

Tailwind (arbitrary value)

bg-[#3f454e]

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

#3f454e (#3f454e) is rgb(63, 69, 78) in RGB.

No, #3f454e 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 #3f454e, or check how it holds up for accessibility.

Generate a palette → Check contrast