#166ec6

Color #166ec6

A vivid, highly saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 16.12 Nearest Tailwind class sky-700 #0069a8 · ΔE 4.8

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

Conversions

HEX

#166ec6

RGB

rgb(22, 110, 198)

HSL

hsl(210, 80%, 43.1%)

HSV / HSB

hsv(210, 88.9%, 77.6%)

CMYK

cmyk(88.9%, 44.4%, 0%, 22.4%)

LAB

lab(46.17, 8.64, -52.6)

LCH

lch(46.17, 53.3, 279.33)

OKLCH

oklch(53.8%, 0.1575, 253.56)

HWB

hwb(210, 8.6%, 22.4%)

Harmony colors

Complementary

#c66e16

Analogous

#16c6c6

#166ec6

#1616c6

Triadic

#166ec6

#c6166e

#6ec616

Split-complementary

#166ec6

#c61616

#c6c616

Tetradic

#166ec6

#6e16c6

#c66e16

#6ec616

Square

#166ec6

#c616c6

#c66e16

#16c616

Shades

Color #166ec6 mixed toward black.

#125ca5

#0f4984

#0b3763

#072542

#041221

Tints

Color #166ec6 mixed toward white.

#2586e7

#519eec

#7cb6f0

#a8cff5

#d3e7fa

Tones

Color #166ec6 mixed toward gray.

#256eb7

#336ea9

#426e9a

#516e8b

#5f6e7d

Accessibility

Aa White text on this color

5.15:1

Aa Black text on this color

4.08:1

White text reads better on this background (5.15:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4c4db6 · ΔE 15

Deuteranopia

#4741b1 · ΔE 18

Tritanopia

#21a7a4 · ΔE 32.8

Achromatopsia

#6d6d6d · ΔE 24.3

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

Code

CSS

background-color: #166ec6;

Tailwind (arbitrary value)

bg-[#166ec6]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Light Steel Blue #b0c4de

Frequently asked questions

#166ec6 (#166ec6) is rgb(22, 110, 198) in RGB.

No, #166ec6 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 #166ec6, or check how it holds up for accessibility.

Generate a palette → Check contrast