#3f8fe9

Color #3f8fe9

A vivid, highly saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 6.02 Nearest Tailwind class blue-500 #2b7fff · ΔE 5.9

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#3f8fe9

RGB

rgb(63, 143, 233)

HSL

hsl(211.8, 79.4%, 58%)

HSV / HSB

hsv(211.8, 73%, 91.4%)

CMYK

cmyk(73%, 38.6%, 0%, 8.6%)

LAB

lab(58.59, 5.46, -52.48)

LCH

lch(58.59, 52.76, 275.94)

OKLCH

oklch(64.4%, 0.156, 253.62)

HWB

hwb(211.8, 24.7%, 8.6%)

Harmony colors

Complementary

#e9993f

Analogous

#3fe4e9

#3f8fe9

#443fe9

Triadic

#3f8fe9

#e93f8f

#8fe93f

Split-complementary

#3f8fe9

#e9443f

#e4e93f

Tetradic

#3f8fe9

#993fe9

#e9993f

#8fe93f

Square

#3f8fe9

#e93fe4

#e9993f

#3fe944

Shades

Color #3f8fe9 mixed toward black.

#1975dd

#145eb1

#0f4685

#0a2f58

#05172c

Tints

Color #3f8fe9 mixed toward white.

#5fa1ed

#7fb4f0

#9fc7f4

#bfdaf8

#dfecfb

Tones

Color #3f8fe9 mixed toward gray.

#4d90db

#5b90cd

#6991be

#7892b0

#8693a2

Accessibility

Aa White text on this color

3.32:1

Aa Black text on this color

6.32:1

Black text reads better on this background (6.32:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6b6cd8 · ΔE 16.1

Deuteranopia

#6660d3 · ΔE 19.5

Tritanopia

#46c9c5 · ΔE 31.1

Achromatopsia

#8d8d8d · ΔE 24.1

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

Code

CSS

background-color: #3f8fe9;

Tailwind (arbitrary value)

bg-[#3f8fe9]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Light Steel Blue #b0c4de

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#3f8fe9 (#3f8fe9) is rgb(63, 143, 233) in RGB.

No, #3f8fe9 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 #3f8fe9, or check how it holds up for accessibility.

Generate a palette → Check contrast