#3f3c55

Color #3f3c55

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 12.81 Nearest Tailwind class mauve-700 #463947 · ΔE 6.3

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Conversions

HEX

#3f3c55

RGB

rgb(63, 60, 85)

HSL

hsl(247.2, 17.2%, 28.4%)

HSV / HSB

hsv(247.2, 29.4%, 33.3%)

CMYK

cmyk(25.9%, 29.4%, 0%, 66.7%)

LAB

lab(26.58, 7.57, -14.57)

LCH

lch(26.58, 16.42, 297.45)

OKLCH

oklch(37%, 0.0427, 289.58)

HWB

hwb(247.2, 23.5%, 66.7%)

Harmony colors

Complementary

#52553c

Analogous

#3c4555

#3f3c55

#4b3c55

Triadic

#3f3c55

#553f3c

#3c553f

Split-complementary

#3f3c55

#554b3c

#45553c

Tetradic

#3f3c55

#553c52

#52553c

#3c553f

Square

#3f3c55

#553c45

#52553c

#3c554b

Shades

Color #3f3c55 mixed toward black.

#343247

#2a2839

#1f1e2a

#15141c

#0a0a0e

Tints

Color #3f3c55 mixed toward white.

#595579

#75709a

#9894b3

#bab8cd

#dddbe6

Tones

Color #3f3c55 mixed toward gray.

#413e53

#424051

#44424f

#45444d

#47464a

Accessibility

Aa White text on this color

10.56:1

Aa Black text on this color

1.99:1

White text reads better on this background (10.56:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3e3e50 · ΔE 3.5

Deuteranopia

#3e3e4e · ΔE 4.4

Tritanopia

#3f4b4a · ΔE 17.4

Achromatopsia

#3f3f3f · ΔE 13

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

Code

CSS

background-color: #3f3c55;

Tailwind (arbitrary value)

bg-[#3f3c55]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#3f3c55 (#3f3c55) is rgb(63, 60, 85) in RGB.

No, #3f3c55 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 #3f3c55, or check how it holds up for accessibility.

Generate a palette → Check contrast