#3688eb

Color #3688eb

A vivid, highly saturated medium blue.

Closest named color Dodger Blue #1e90ff · ΔE 7.08 Nearest Tailwind class blue-500 #2b7fff · ΔE 3.9

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

Conversions

HEX

#3688eb

RGB

rgb(54, 136, 235)

HSL

hsl(212.8, 81.9%, 56.7%)

HSV / HSB

hsv(212.8, 77%, 92.2%)

CMYK

cmyk(77%, 42.1%, 0%, 7.8%)

LAB

lab(56.47, 9.31, -56.97)

LCH

lch(56.47, 57.73, 279.28)

OKLCH

oklch(62.7%, 0.1686, 255.26)

HWB

hwb(212.8, 21.2%, 7.8%)

Harmony colors

Complementary

#eb9936

Analogous

#36e3eb

#3688eb

#3f36eb

Triadic

#3688eb

#eb3688

#88eb36

Split-complementary

#3688eb

#eb3f36

#e3eb36

Tetradic

#3688eb

#9936eb

#eb9936

#88eb36

Square

#3688eb

#eb36e3

#eb9936

#36eb3f

Shades

Color #3688eb mixed toward black.

#166fdb

#1159af

#0d4384

#092d58

#04162c

Tints

Color #3688eb mixed toward white.

#589cee

#79b0f2

#9bc4f5

#bcd7f8

#deebfc

Tones

Color #3688eb mixed toward gray.

#458adc

#548bcd

#638cbe

#728eaf

#828fa0

Accessibility

Aa White text on this color

3.57:1

Aa Black text on this color

5.88:1

Black text reads better on this background (5.88:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6465d8 · ΔE 15.7

Deuteranopia

#5f59d4 · ΔE 19.1

Tritanopia

#3dc8c4 · ΔE 33.3

Achromatopsia

#878787 · ΔE 25.1

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

Code

CSS

background-color: #3688eb;

Tailwind (arbitrary value)

bg-[#3688eb]

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

#3688eb (#3688eb) is rgb(54, 136, 235) in RGB.

No, #3688eb 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.

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 #3688eb, or check how it holds up for accessibility.

Generate a palette → Check contrast