#173f40

Color #173f40

A moderately saturated very dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 7.54 Nearest Tailwind class teal-950 #022f2e · ΔE 5.3

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Conversions

HEX

#173f40

RGB

rgb(23, 63, 64)

HSL

hsl(181.5, 47.1%, 17.1%)

HSV / HSB

hsv(181.5, 64.1%, 25.1%)

CMYK

cmyk(64.1%, 1.6%, 0%, 74.9%)

LAB

lab(24.02, -13.52, -4.84)

LCH

lch(24.02, 14.36, 199.7)

OKLCH

oklch(34%, 0.0446, 197.5)

HWB

hwb(181.5, 9%, 74.9%)

Harmony colors

Complementary

#401817

Analogous

#17402d

#173f40

#172b40

Triadic

#173f40

#40173f

#3f4017

Split-complementary

#173f40

#40172b

#402d17

Tetradic

#173f40

#181740

#401817

#3f4017

Square

#173f40

#2d1740

#401817

#2b4017

Shades

Color #173f40 mixed toward black.

#133535

#0f2a2b

#0c2020

#081515

#040b0b

Tints

Color #173f40 mixed toward white.

#2a7274

#3ca5a8

#64c5c7

#97d8da

#cbecec

Tones

Color #173f40 mixed toward gray.

#1a3c3d

#1e3939

#213536

#253232

#282f2f

Accessibility

Aa White text on this color

11.53:1

Aa Black text on this color

1.82:1

White text reads better on this background (11.53:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2d2d40 · ΔE 20.7

Deuteranopia

#2b2840 · ΔE 23.5

Tritanopia

#1a4040 · ΔE 0.6

Achromatopsia

#393939 · ΔE 14.2

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

Code

CSS

background-color: #173f40;

Tailwind (arbitrary value)

bg-[#173f40]

Related colors

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Dark Slate Gray #2f4f4f

Frequently asked questions

#173f40 (#173f40) is rgb(23, 63, 64) in RGB.

No, #173f40 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 #173f40, or check how it holds up for accessibility.

Generate a palette → Check contrast