#166ea8

Color #166ea8

A vivid, highly saturated dark blue.

Closest named color Steel Blue #4682b4 · ΔE 9.92 Nearest Tailwind class sky-700 #0069a8 · ΔE 1.9

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Conversions

HEX

#166ea8

RGB

rgb(22, 110, 168)

HSL

hsl(203.8, 76.8%, 37.3%)

HSV / HSB

hsv(203.8, 86.9%, 65.9%)

CMYK

cmyk(86.9%, 34.5%, 0%, 34.1%)

LAB

lab(44.44, -3.11, -37.93)

LCH

lch(44.44, 38.06, 265.31)

OKLCH

oklch(51.9%, 0.1199, 244.25)

HWB

hwb(203.8, 8.6%, 34.1%)

Harmony colors

Complementary

#a85016

Analogous

#16a899

#166ea8

#1625a8

Triadic

#166ea8

#a8166e

#6ea816

Split-complementary

#166ea8

#a81625

#a89916

Tetradic

#166ea8

#5016a8

#a85016

#6ea816

Square

#166ea8

#9916a8

#a85016

#25a816

Shades

Color #166ea8 mixed toward black.

#125c8c

#0f4970

#0b3754

#072538

#04121c

Tints

Color #166ea8 mixed toward white.

#1c8dd7

#43a5e6

#72bcec

#a1d2f3

#d0e9f9

Tones

Color #166ea8 mixed toward gray.

#226c9c

#2e6990

#3b6784

#476477

#53626b

Accessibility

Aa White text on this color

5.48:1

Aa Black text on this color

3.83:1

White text reads better on this background (5.48:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4c4d9c · ΔE 17.1

Deuteranopia

#47419a · ΔE 20

Tritanopia

#219290 · ΔE 24.7

Achromatopsia

#696969 · ΔE 20.5

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

Code

CSS

background-color: #166ea8;

Tailwind (arbitrary value)

bg-[#166ea8]

Related colors

Charcoal #36454f

Light Sky Blue #87cefa

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#166ea8 (#166ea8) is rgb(22, 110, 168) in RGB.

No, #166ea8 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.

Try it → Generators

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 #166ea8, or check how it holds up for accessibility.

Generate a palette → Check contrast