#3f4e99

Color #3f4e99

A moderately saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 9.72 Nearest Tailwind class blue-900 #1c398e · ΔE 7

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Conversions

HEX

#3f4e99

RGB

rgb(63, 78, 153)

HSL

hsl(230, 41.7%, 42.4%)

HSV / HSB

hsv(230, 58.8%, 60%)

CMYK

cmyk(58.8%, 49%, 0%, 40%)

LAB

lab(35.61, 17.64, -42.99)

LCH

lch(35.61, 46.47, 292.31)

OKLCH

oklch(45.2%, 0.1228, 272.1)

HWB

hwb(230, 24.7%, 40%)

Harmony colors

Complementary

#998a3f

Analogous

#3f7b99

#3f4e99

#5d3f99

Triadic

#3f4e99

#993f4e

#4e993f

Split-complementary

#3f4e99

#995d3f

#7b993f

Tetradic

#3f4e99

#8a3f99

#998a3f

#4e993f

Square

#3f4e99

#993f7b

#998a3f

#3f995d

Shades

Color #3f4e99 mixed toward black.

#354180

#2a3466

#20274d

#151a33

#0b0d1a

Tints

Color #3f4e99 mixed toward white.

#5263b8

#7482c6

#97a1d4

#bac0e2

#dce0f1

Tones

Color #3f4e99 mixed toward gray.

#475392

#4e588a

#565d83

#5d627b

#656774

Accessibility

Aa White text on this color

7.61:1

Aa Black text on this color

2.76:1

White text reads better on this background (7.61:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#46468b · ΔE 4.2

Deuteranopia

#454488 · ΔE 4.8

Tritanopia

#407f7d · ΔE 29.9

Achromatopsia

#545454 · ΔE 23

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

Code

CSS

background-color: #3f4e99;

Tailwind (arbitrary value)

bg-[#3f4e99]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#3f4e99 (#3f4e99) is rgb(63, 78, 153) in RGB.

No, #3f4e99 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 #3f4e99, or check how it holds up for accessibility.

Generate a palette → Check contrast