#428bec

Color #428bec

A vivid, highly saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 7.49 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.3

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

Conversions

HEX

#428bec

RGB

rgb(66, 139, 236)

HSL

hsl(214.2, 81.7%, 59.2%)

HSV / HSB

hsv(214.2, 72%, 92.5%)

CMYK

cmyk(72%, 41.1%, 0%, 7.5%)

LAB

lab(57.73, 9.31, -55.5)

LCH

lch(57.73, 56.28, 279.52)

OKLCH

oklch(63.8%, 0.1631, 256.53)

HWB

hwb(214.2, 25.9%, 7.5%)

Harmony colors

Complementary

#eca342

Analogous

#42e0ec

#428bec

#4e42ec

Triadic

#428bec

#ec428b

#8bec42

Split-complementary

#428bec

#ec4e42

#e0ec42

Tetradic

#428bec

#a342ec

#eca342

#8bec42

Square

#428bec

#ec42e0

#eca342

#42ec4e

Shades

Color #428bec mixed toward black.

#176fe5

#1259b7

#0e4389

#092d5b

#05162e

Tints

Color #428bec mixed toward white.

#619eef

#81b2f2

#a0c5f5

#c0d8f9

#dfecfc

Tones

Color #428bec mixed toward gray.

#508dde

#5e8fd0

#6c91c1

#7b93b3

#8995a5

Accessibility

Aa White text on this color

3.42:1

Aa Black text on this color

6.14:1

Black text reads better on this background (6.14:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696ada · ΔE 14.8

Deuteranopia

#655fd5 · ΔE 18

Tritanopia

#48cac6 · ΔE 32.8

Achromatopsia

#8b8b8b · ΔE 24.9

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

Code

CSS

background-color: #428bec;

Tailwind (arbitrary value)

bg-[#428bec]

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

#428bec (#428bec) is rgb(66, 139, 236) in RGB.

No, #428bec 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #428bec, or check how it holds up for accessibility.

Generate a palette → Check contrast