#4288eb

Color #4288eb

A vivid, highly saturated medium blue.

Closest named color Dodger Blue #1e90ff · ΔE 7.52 Nearest Tailwind class blue-500 #2b7fff · ΔE 3.4

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

Conversions

HEX

#4288eb

RGB

rgb(66, 136, 235)

HSL

hsl(215.1, 80.9%, 59%)

HSV / HSB

hsv(215.1, 71.9%, 92.2%)

CMYK

cmyk(71.9%, 42.1%, 0%, 7.8%)

LAB

lab(56.84, 10.77, -56.36)

LCH

lch(56.84, 57.38, 280.82)

OKLCH

oklch(63.1%, 0.1651, 257.55)

HWB

hwb(215.1, 25.9%, 7.8%)

Harmony colors

Complementary

#eba542

Analogous

#42ddeb

#4288eb

#5042eb

Triadic

#4288eb

#eb4288

#88eb42

Split-complementary

#4288eb

#eb5042

#ddeb42

Tetradic

#4288eb

#a542eb

#eba542

#88eb42

Square

#4288eb

#eb42dd

#eba542

#42eb50

Shades

Color #4288eb mixed toward black.

#186ce3

#1357b5

#0e4188

#0a2b5b

#05162d

Tints

Color #4288eb mixed toward white.

#619cee

#81b0f2

#a0c4f5

#c0d7f8

#dfebfc

Tones

Color #4288eb mixed toward gray.

#508add

#5e8dcf

#6c8fc1

#7a92b3

#8894a5

Accessibility

Aa White text on this color

3.53:1

Aa Black text on this color

5.95:1

Black text reads better on this background (5.95:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6868d8 · ΔE 14.3

Deuteranopia

#645ed4 · ΔE 17.2

Tritanopia

#48c8c4 · ΔE 33.3

Achromatopsia

#888888 · ΔE 25.1

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

Code

CSS

background-color: #4288eb;

Tailwind (arbitrary value)

bg-[#4288eb]

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

#4288eb (#4288eb) is rgb(66, 136, 235) in RGB.

No, #4288eb 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 #4288eb, or check how it holds up for accessibility.

Generate a palette → Check contrast