#171f34

Color #171f34

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 19.06 Nearest Tailwind class slate-900 #0f172b · ΔE 2.5

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Conversions

HEX

#171f34

RGB

rgb(23, 31, 52)

HSL

hsl(223.4, 38.7%, 14.7%)

HSV / HSB

hsv(223.4, 55.8%, 20.4%)

CMYK

cmyk(55.8%, 40.4%, 0%, 79.6%)

LAB

lab(12.02, 3.58, -14.93)

LCH

lch(12.02, 15.35, 283.48)

OKLCH

oklch(24.3%, 0.042, 267.41)

HWB

hwb(223.4, 9%, 79.6%)

Harmony colors

Complementary

#342c17

Analogous

#172e34

#171f34

#1d1734

Triadic

#171f34

#34171f

#1f3417

Split-complementary

#171f34

#341d17

#2e3417

Tetradic

#171f34

#2c1734

#342c17

#1f3417

Square

#171f34

#34172e

#342c17

#17341d

Shades

Color #171f34 mixed toward black.

#131a2b

#0f1523

#0b101a

#080a11

#040509

Tints

Color #171f34 mixed toward white.

#2d3d66

#435b99

#687fbc

#9aaad3

#cdd4e9

Tones

Color #171f34 mixed toward gray.

#192032

#1c212f

#1e222d

#21232a

#232428

Accessibility

Aa White text on this color

16.38:1

Aa Black text on this color

1.28:1

White text reads better on this background (16.38:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1b1b30 · ΔE 3.8

Deuteranopia

#1a1a2f · ΔE 3.9

Tritanopia

#172c2b · ΔE 16.7

Achromatopsia

#202020 · ΔE 11.7

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

Code

CSS

background-color: #171f34;

Tailwind (arbitrary value)

bg-[#171f34]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#171f34 (#171f34) is rgb(23, 31, 52) in RGB.

No, #171f34 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 #171f34, or check how it holds up for accessibility.

Generate a palette → Check contrast