#155a64

Color #155a64

A moderately saturated dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 10.22 Nearest Tailwind class cyan-800 #005f78 · ΔE 6.3

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Conversions

HEX

#155a64

RGB

rgb(21, 90, 100)

HSL

hsl(187.6, 65.3%, 23.7%)

HSV / HSB

hsv(187.6, 79%, 39.2%)

CMYK

cmyk(79%, 10%, 0%, 60.8%)

LAB

lab(34.78, -16.93, -11.78)

LCH

lch(34.78, 20.63, 214.83)

OKLCH

oklch(43.1%, 0.067, 209.32)

HWB

hwb(187.6, 8.2%, 60.8%)

Harmony colors

Complementary

#641f15

Analogous

#156446

#155a64

#153264

Triadic

#155a64

#64155a

#5a6415

Split-complementary

#155a64

#641532

#644615

Tetradic

#155a64

#1f1564

#641f15

#5a6415

Square

#155a64

#461564

#641f15

#326415

Shades

Color #155a64 mixed toward black.

#114b53

#0e3c43

#0a2d32

#071e21

#030f11

Tints

Color #155a64 mixed toward white.

#208a9a

#2bbacf

#5ecddd

#94dee8

#c9eef4

Tones

Color #155a64 mixed toward gray.

#1c555d

#225057

#294b50

#2f464a

#364143

Accessibility

Aa White text on this color

7.84:1

Aa Black text on this color

2.68:1

White text reads better on this background (7.84:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3e3f62 · ΔE 23.8

Deuteranopia

#3b3561 · ΔE 25.8

Tritanopia

#1d605f · ΔE 5.7

Achromatopsia

#525252 · ΔE 17

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

Code

CSS

background-color: #155a64;

Tailwind (arbitrary value)

bg-[#155a64]

Related colors

Powder Blue #b0e0e6

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Light Blue #add8e6

Deep Sky Blue #00bfff

Aqua #00ffff

Frequently asked questions

#155a64 (#155a64) is rgb(21, 90, 100) in RGB.

No, #155a64 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 #155a64, or check how it holds up for accessibility.

Generate a palette → Check contrast