#172740

Color #172740

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 17.22 Nearest Tailwind class slate-800 #1d293d · ΔE 2.2

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Conversions

HEX

#172740

RGB

rgb(23, 39, 64)

HSL

hsl(216.6, 47.1%, 17.1%)

HSV / HSB

hsv(216.6, 64.1%, 25.1%)

CMYK

cmyk(64.1%, 39.1%, 0%, 74.9%)

LAB

lab(15.5, 2.34, -17.92)

LCH

lch(15.5, 18.07, 277.44)

OKLCH

oklch(27.2%, 0.0515, 259.04)

HWB

hwb(216.6, 9%, 74.9%)

Harmony colors

Complementary

#403017

Analogous

#173c40

#172740

#1c1740

Triadic

#172740

#401727

#274017

Split-complementary

#172740

#401c17

#3c4017

Tetradic

#172740

#301740

#403017

#274017

Square

#172740

#40173c

#403017

#17401c

Shades

Color #172740 mixed toward black.

#132135

#0f1a2b

#0c1420

#080d15

#04070b

Tints

Color #172740 mixed toward white.

#2a4774

#3c66a8

#648ac7

#97b1da

#cbd8ec

Tones

Color #172740 mixed toward gray.

#1a283d

#1e2939

#212936

#252a32

#282b2f

Accessibility

Aa White text on this color

14.99:1

Aa Black text on this color

1.4:1

White text reads better on this background (14.99:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f1f3b · ΔE 6.9

Deuteranopia

#1e1d3a · ΔE 7.6

Tritanopia

#183736 · ΔE 18

Achromatopsia

#272727 · ΔE 12.9

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

Code

CSS

background-color: #172740;

Tailwind (arbitrary value)

bg-[#172740]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#172740 (#172740) is rgb(23, 39, 64) in RGB.

No, #172740 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.

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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 #172740, or check how it holds up for accessibility.

Generate a palette → Check contrast