#428fe7

Color #428fe7

A vivid, highly saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 5.75 Nearest Tailwind class blue-500 #2b7fff · ΔE 5.9

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

Conversions

HEX

#428fe7

RGB

rgb(66, 143, 231)

HSL

hsl(212, 77.5%, 58.2%)

HSV / HSB

hsv(212, 71.4%, 90.6%)

CMYK

cmyk(71.4%, 38.1%, 0%, 9.4%)

LAB

lab(58.57, 5.15, -51.38)

LCH

lch(58.57, 51.64, 275.72)

OKLCH

oklch(64.4%, 0.1525, 253.78)

HWB

hwb(212, 25.9%, 9.4%)

Harmony colors

Complementary

#e79a42

Analogous

#42e2e7

#428fe7

#4742e7

Triadic

#428fe7

#e7428f

#8fe742

Split-complementary

#428fe7

#e74742

#e2e742

Tetradic

#428fe7

#9a42e7

#e79a42

#8fe742

Square

#428fe7

#e742e2

#e79a42

#42e747

Shades

Color #428fe7 mixed toward black.

#1c75dc

#165eb0

#114684

#0b2f58

#06172c

Tints

Color #428fe7 mixed toward white.

#61a2eb

#81b4ef

#a0c7f3

#c0daf7

#dfecfb

Tones

Color #428fe7 mixed toward gray.

#5090d9

#5d91cb

#6b92be

#7993b0

#8793a2

Accessibility

Aa White text on this color

3.33:1

Aa Black text on this color

6.31:1

Black text reads better on this background (6.31:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6c6dd6 · ΔE 15.8

Deuteranopia

#6861d2 · ΔE 19.3

Tritanopia

#48c7c4 · ΔE 30.4

Achromatopsia

#8d8d8d · ΔE 23.9

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

Code

CSS

background-color: #428fe7;

Tailwind (arbitrary value)

bg-[#428fe7]

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

#428fe7 (#428fe7) is rgb(66, 143, 231) in RGB.

No, #428fe7 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.

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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 #428fe7, or check how it holds up for accessibility.

Generate a palette → Check contrast