#173a3e

Color #173a3e

A moderately saturated very dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 9.5 Nearest Tailwind class teal-950 #022f2e · ΔE 5.3

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

Conversions

HEX

#173a3e

RGB

rgb(23, 58, 62)

HSL

hsl(186.2, 45.9%, 16.7%)

HSV / HSB

hsv(186.2, 62.9%, 24.3%)

CMYK

cmyk(62.9%, 6.5%, 0%, 75.7%)

LAB

lab(22.14, -11.19, -6.32)

LCH

lch(22.14, 12.85, 209.46)

OKLCH

oklch(32.5%, 0.0407, 205.43)

HWB

hwb(186.2, 9%, 75.7%)

Harmony colors

Complementary

#3e1b17

Analogous

#173e2f

#173a3e

#17273e

Triadic

#173a3e

#3e173a

#3a3e17

Split-complementary

#173a3e

#3e1727

#3e2f17

Tetradic

#173a3e

#1b173e

#3e1b17

#3a3e17

Square

#173a3e

#2f173e

#3e1b17

#273e17

Shades

Color #173a3e mixed toward black.

#133034

#0f2729

#0c1d1f

#081315

#040a0a

Tints

Color #173a3e mixed toward white.

#2a6a72

#3d9ba5

#64bbc6

#98d2d9

#cbe8ec

Tones

Color #173a3e mixed toward gray.

#1a383b

#1e3538

#213234

#243031

#272d2e

Accessibility

Aa White text on this color

12.27:1

Aa Black text on this color

1.71:1

White text reads better on this background (12.27:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2a3d · ΔE 19

Deuteranopia

#28253d · ΔE 21.7

Tritanopia

#1a3c3c · ΔE 2.4

Achromatopsia

#353535 · ΔE 12.8

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

Code

CSS

background-color: #173a3e;

Tailwind (arbitrary value)

bg-[#173a3e]

Related colors

Powder Blue #b0e0e6

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Frequently asked questions

#173a3e (#173a3e) is rgb(23, 58, 62) in RGB.

No, #173a3e 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 #173a3e, or check how it holds up for accessibility.

Generate a palette → Check contrast