#3987e1

Color #3987e1

A vivid, highly saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 7.53 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.3

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

Conversions

HEX

#3987e1

RGB

rgb(57, 135, 225)

HSL

hsl(212.1, 73.7%, 55.3%)

HSV / HSB

hsv(212.1, 74.7%, 88.2%)

CMYK

cmyk(74.7%, 40%, 0%, 11.8%)

LAB

lab(55.72, 6.63, -52.6)

LCH

lch(55.72, 53.02, 277.18)

OKLCH

oklch(62%, 0.1561, 254.24)

HWB

hwb(212.1, 22.4%, 11.8%)

Harmony colors

Complementary

#e19339

Analogous

#39dbe1

#3987e1

#3f39e1

Triadic

#3987e1

#e13987

#87e139

Split-complementary

#3987e1

#e13f39

#dbe139

Tetradic

#3987e1

#9339e1

#e19339

#87e139

Square

#3987e1

#e139db

#e19339

#39e13f

Shades

Color #3987e1 mixed toward black.

#1f6fcc

#1959a3

#13437a

#0c2d52

#061629

Tints

Color #3987e1 mixed toward white.

#5a9be6

#7bafeb

#9cc3f0

#bdd7f5

#deebfa

Tones

Color #3987e1 mixed toward gray.

#4788d3

#5589c5

#638ab7

#718ba9

#7f8c9b

Accessibility

Aa White text on this color

3.67:1

Aa Black text on this color

5.73:1

Black text reads better on this background (5.73:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6465d0 · ΔE 15.7

Deuteranopia

#605acb · ΔE 19

Tritanopia

#40c1bd · ΔE 31.6

Achromatopsia

#858585 · ΔE 24.2

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

Code

CSS

background-color: #3987e1;

Tailwind (arbitrary value)

bg-[#3987e1]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#3987e1 (#3987e1) is rgb(57, 135, 225) in RGB.

No, #3987e1 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 #3987e1, or check how it holds up for accessibility.

Generate a palette → Check contrast