#3f3f55

Color #3f3f55

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 10.28 Nearest Tailwind class gray-700 #364153 · ΔE 6.3

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Conversions

HEX

#3f3f55

RGB

rgb(63, 63, 85)

HSL

hsl(240, 14.9%, 29%)

HSV / HSB

hsv(240, 25.9%, 33.3%)

CMYK

cmyk(25.9%, 25.9%, 0%, 66.7%)

LAB

lab(27.48, 5.57, -13.17)

LCH

lch(27.48, 14.3, 292.93)

OKLCH

oklch(37.7%, 0.0374, 284.41)

HWB

hwb(240, 24.7%, 66.7%)

Harmony colors

Complementary

#55553f

Analogous

#3f4a55

#3f3f55

#4a3f55

Triadic

#3f3f55

#553f3f

#3f553f

Split-complementary

#3f3f55

#554a3f

#4a553f

Tetradic

#3f3f55

#553f55

#55553f

#3f553f

Square

#3f3f55

#553f4a

#55553f

#3f554a

Shades

Color #3f3f55 mixed toward black.

#343447

#2a2a39

#1f1f2a

#15151c

#0a0a0e

Tints

Color #3f3f55 mixed toward white.

#595978

#747498

#9797b2

#babacc

#dcdce5

Tones

Color #3f3f55 mixed toward gray.

#414153

#434351

#44444f

#46464e

#48484c

Accessibility

Aa White text on this color

10.23:1

Aa Black text on this color

2.05:1

White text reads better on this background (10.23:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3f3f50 · ΔE 2.2

Deuteranopia

#3f3f4f · ΔE 2.7

Tritanopia

#3f4c4b · ΔE 15.8

Achromatopsia

#414141 · ΔE 11.5

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

Code

CSS

background-color: #3f3f55;

Tailwind (arbitrary value)

bg-[#3f3f55]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#3f3f55 (#3f3f55) is rgb(63, 63, 85) in RGB.

No, #3f3f55 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 #3f3f55, or check how it holds up for accessibility.

Generate a palette → Check contrast