#4287e7

Color #4287e7

A vivid, highly saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 7.97 Nearest Tailwind class blue-500 #2b7fff · ΔE 3.4

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

Conversions

HEX

#4287e7

RGB

rgb(66, 135, 231)

HSL

hsl(214.9, 77.5%, 58.2%)

HSV / HSB

hsv(214.9, 71.4%, 90.6%)

CMYK

cmyk(71.4%, 41.6%, 0%, 9.4%)

LAB

lab(56.34, 9.95, -54.94)

LCH

lch(56.34, 55.83, 280.27)

OKLCH

oklch(62.6%, 0.161, 257.26)

HWB

hwb(214.9, 25.9%, 9.4%)

Harmony colors

Complementary

#e7a242

Analogous

#42dae7

#4287e7

#4f42e7

Triadic

#4287e7

#e74287

#87e742

Split-complementary

#4287e7

#e74f42

#dae742

Tetradic

#4287e7

#a242e7

#e7a242

#87e742

Square

#4287e7

#e742da

#e7a242

#42e74f

Shades

Color #4287e7 mixed toward black.

#1c6cdc

#1656b0

#114184

#0b2b58

#06162c

Tints

Color #4287e7 mixed toward white.

#619beb

#81afef

#a0c3f3

#c0d7f7

#dfebfb

Tones

Color #4287e7 mixed toward gray.

#5089d9

#5d8bcb

#6b8ebe

#7990b0

#8792a2

Accessibility

Aa White text on this color

3.59:1

Aa Black text on this color

5.85:1

Black text reads better on this background (5.85:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6768d5 · ΔE 14.1

Deuteranopia

#635ed0 · ΔE 17

Tritanopia

#47c5c1 · ΔE 32.8

Achromatopsia

#878787 · ΔE 24.8

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

Code

CSS

background-color: #4287e7;

Tailwind (arbitrary value)

bg-[#4287e7]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#4287e7 (#4287e7) is rgb(66, 135, 231) in RGB.

No, #4287e7 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #4287e7, or check how it holds up for accessibility.

Generate a palette → Check contrast