#3f3d52

Color #3f3d52

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 10.43 Nearest Tailwind class mauve-700 #463947 · ΔE 5.8

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Conversions

HEX

#3f3d52

RGB

rgb(63, 61, 82)

HSL

hsl(245.7, 14.7%, 28%)

HSV / HSB

hsv(245.7, 25.6%, 32.2%)

CMYK

cmyk(23.2%, 25.6%, 0%, 67.8%)

LAB

lab(26.74, 6.07, -12.35)

LCH

lch(26.74, 13.76, 296.17)

OKLCH

oklch(37.1%, 0.0358, 288.89)

HWB

hwb(245.7, 23.9%, 67.8%)

Harmony colors

Complementary

#50523d

Analogous

#3d4552

#3f3d52

#493d52

Triadic

#3f3d52

#523f3d

#3d523f

Split-complementary

#3f3d52

#52493d

#45523d

Tetradic

#3f3d52

#523d50

#50523d

#3d523f

Square

#3f3d52

#523d45

#50523d

#3d5249

Shades

Color #3f3d52 mixed toward black.

#343344

#2a2937

#1f1e29

#15141b

#0a0a0e

Tints

Color #3f3d52 mixed toward white.

#5a5775

#767397

#9896b1

#bbb9cb

#dddce5

Tones

Color #3f3d52 mixed toward gray.

#403f50

#42404e

#43424d

#45444b

#464649

Accessibility

Aa White text on this color

10.5:1

Aa Black text on this color

2:1

White text reads better on this background (10.5:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3e3e4e · ΔE 2.6

Deuteranopia

#3e3e4c · ΔE 3.6

Tritanopia

#3f4a49 · ΔE 15.5

Achromatopsia

#3f3f3f · ΔE 11.4

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

Code

CSS

background-color: #3f3d52;

Tailwind (arbitrary value)

bg-[#3f3d52]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#3f3d52 (#3f3d52) is rgb(63, 61, 82) in RGB.

No, #3f3d52 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #3f3d52, or check how it holds up for accessibility.

Generate a palette → Check contrast