#3f30ab

Color #3f30ab

A moderately saturated medium blue.

Closest named color Indigo #4b0082 · ΔE 16.42 Nearest Tailwind class indigo-800 #372aac · ΔE 1.6

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Conversions

HEX

#3f30ab

RGB

rgb(63, 48, 171)

HSL

hsl(247.3, 56.2%, 42.9%)

HSV / HSB

hsv(247.3, 71.9%, 67.1%)

CMYK

cmyk(63.2%, 71.9%, 0%, 32.9%)

LAB

lab(29.69, 42.64, -63.44)

LCH

lch(29.69, 76.44, 303.91)

OKLCH

oklch(41.2%, 0.1858, 279.95)

HWB

hwb(247.3, 18.8%, 32.9%)

Harmony colors

Complementary

#9cab30

Analogous

#305eab

#3f30ab

#7c30ab

Triadic

#3f30ab

#ab3f30

#30ab3f

Split-complementary

#3f30ab

#ab7c30

#5eab30

Tetradic

#3f30ab

#ab309c

#9cab30

#30ab3f

Square

#3f30ab

#ab305e

#9cab30

#30ab7c

Shades

Color #3f30ab mixed toward black.

#34288e

#2a2072

#1f1855

#151039

#0a081c

Tints

Color #3f30ab mixed toward white.

#5241ca

#7567d4

#978ddf

#bab3ea

#dcd9f4

Tones

Color #3f30ab mixed toward gray.

#473aa1

#4e4496

#564f8c

#5e5982

#666378

Accessibility

Aa White text on this color

9.45:1

Aa Black text on this color

2.22:1

White text reads better on this background (9.45:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#393998 · ΔE 4.2

Deuteranopia

#3a3b93 · ΔE 5.3

Tritanopia

#3e8783 · ΔE 38.6

Achromatopsia

#464646 · ΔE 28.1

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

Code

CSS

background-color: #3f30ab;

Tailwind (arbitrary value)

bg-[#3f30ab]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#3f30ab (#3f30ab) is rgb(63, 48, 171) in RGB.

No, #3f30ab 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 #3f30ab, or check how it holds up for accessibility.

Generate a palette → Check contrast