#3f88e9

Color #3f88e9

A vivid, highly saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 8.24 Nearest Tailwind class blue-500 #2b7fff · ΔE 3.6

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Conversions

HEX

#3f88e9

RGB

rgb(63, 136, 233)

HSL

hsl(214.2, 79.4%, 58%)

HSV / HSB

hsv(214.2, 73%, 91.4%)

CMYK

cmyk(73%, 41.6%, 0%, 8.6%)

LAB

lab(56.63, 9.66, -55.6)

LCH

lch(56.63, 56.43, 279.86)

OKLCH

oklch(62.9%, 0.1634, 256.58)

HWB

hwb(214.2, 24.7%, 8.6%)

Harmony colors

Complementary

#e9a03f

Analogous

#3fdde9

#3f88e9

#4b3fe9

Triadic

#3f88e9

#e93f88

#88e93f

Split-complementary

#3f88e9

#e94b3f

#dde93f

Tetradic

#3f88e9

#a03fe9

#e9a03f

#88e93f

Square

#3f88e9

#e93fdd

#e9a03f

#3fe94b

Shades

Color #3f88e9 mixed toward black.

#196edd

#1458b1

#0f4285

#0a2c58

#05162c

Tints

Color #3f88e9 mixed toward white.

#5f9ced

#7fb0f0

#9fc3f4

#bfd7f8

#dfebfb

Tones

Color #3f88e9 mixed toward gray.

#4d8adb

#5b8ccd

#698ebe

#7890b0

#8692a2

Accessibility

Aa White text on this color

3.55:1

Aa Black text on this color

5.91:1

Black text reads better on this background (5.91:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6767d7 · ΔE 14.9

Deuteranopia

#625dd2 · ΔE 17.7

Tritanopia

#45c7c3 · ΔE 33

Achromatopsia

#888888 · ΔE 24.9

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

Code

CSS

background-color: #3f88e9;

Tailwind (arbitrary value)

bg-[#3f88e9]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Cornflower Blue #6495ed

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#3f88e9 (#3f88e9) is rgb(63, 136, 233) in RGB.

No, #3f88e9 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 #3f88e9, or check how it holds up for accessibility.

Generate a palette → Check contrast