#055c66

Color #055c66

A vivid, highly saturated dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 11.86 Nearest Tailwind class cyan-800 #005f78 · ΔE 6.6

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Conversions

HEX

#055c66

RGB

rgb(5, 92, 102)

HSL

hsl(186.2, 90.7%, 21%)

HSV / HSB

hsv(186.2, 95.1%, 40%)

CMYK

cmyk(95.1%, 9.8%, 0%, 60%)

LAB

lab(35.29, -18.87, -12.28)

LCH

lch(35.29, 22.51, 213.05)

OKLCH

oklch(43.5%, 0.0732, 207.93)

HWB

hwb(186.2, 2%, 60%)

Harmony colors

Complementary

#660f05

Analogous

#056640

#055c66

#052c66

Triadic

#055c66

#66055c

#5c6605

Split-complementary

#055c66

#66052c

#664005

Tetradic

#055c66

#0f0566

#660f05

#5c6605

Square

#055c66

#400566

#660f05

#2c6605

Shades

Color #055c66 mixed toward black.

#044d55

#033d44

#022e33

#021f22

#010f11

Tints

Color #055c66 mixed toward white.

#0896a6

#0bd0e6

#3fe3f6

#7fecf9

#bff6fc

Tones

Color #055c66 mixed toward gray.

#0d565e

#154f56

#1d494e

#254246

#2d3c3e

Accessibility

Aa White text on this color

7.69:1

Aa Black text on this color

2.73:1

White text reads better on this background (7.69:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3d3e64 · ΔE 24.7

Deuteranopia

#393363 · ΔE 26.7

Tritanopia

#146261 · ΔE 5.5

Achromatopsia

#535353 · ΔE 18

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

Code

CSS

background-color: #055c66;

Tailwind (arbitrary value)

bg-[#055c66]

Related colors

Powder Blue #b0e0e6

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Frequently asked questions

#055c66 (#055c66) is rgb(5, 92, 102) in RGB.

No, #055c66 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 #055c66, or check how it holds up for accessibility.

Generate a palette → Check contrast