#3f4e57

Color #3f4e57

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 3.93 Nearest Tailwind class mist-700 #394447 · ΔE 4.6

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#3f4e57

RGB

rgb(63, 78, 87)

HSL

hsl(202.5, 16%, 29.4%)

HSV / HSB

hsv(202.5, 27.6%, 34.1%)

CMYK

cmyk(27.6%, 10.3%, 0%, 65.9%)

LAB

lab(32.24, -3.54, -7.24)

LCH

lch(32.24, 8.06, 243.94)

OKLCH

oklch(41.4%, 0.0242, 234.41)

HWB

hwb(202.5, 24.7%, 65.9%)

Harmony colors

Complementary

#57483f

Analogous

#3f5754

#3f4e57

#3f4257

Triadic

#3f4e57

#573f4e

#4e573f

Split-complementary

#3f4e57

#573f42

#57543f

Tetradic

#3f4e57

#483f57

#57483f

#4e573f

Square

#3f4e57

#543f57

#57483f

#42573f

Shades

Color #3f4e57 mixed toward black.

#344148

#2a343a

#1f272b

#151a1d

#0a0d0e

Tints

Color #3f4e57 mixed toward white.

#586d7a

#748c9a

#97a9b3

#b9c5cd

#dce2e6

Tones

Color #3f4e57 mixed toward gray.

#414d55

#434d53

#454c51

#474c4f

#494b4d

Accessibility

Aa White text on this color

8.61:1

Aa Black text on this color

2.44:1

White text reads better on this background (8.61:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#464655 · ΔE 9.7

Deuteranopia

#454454 · ΔE 10.6

Tritanopia

#405353 · ΔE 6.2

Achromatopsia

#4c4c4c · ΔE 7.5

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

Code

CSS

background-color: #3f4e57;

Tailwind (arbitrary value)

bg-[#3f4e57]

Related colors

Light Sky Blue #87cefa

Charcoal #36454f

Steel Blue #4682b4

Sky Blue #87ceeb

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Frequently asked questions

#3f4e57 (#3f4e57) is rgb(63, 78, 87) in RGB.

No, #3f4e57 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 #3f4e57, or check how it holds up for accessibility.

Generate a palette → Check contrast