#3a6566

Color #3a6566

A muted dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 9.2 Nearest Tailwind class teal-800 #005f5a · ΔE 7.4

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Conversions

HEX

#3a6566

RGB

rgb(58, 101, 102)

HSL

hsl(181.4, 27.5%, 31.4%)

HSV / HSB

hsv(181.4, 43.1%, 40%)

CMYK

cmyk(43.1%, 1%, 0%, 60%)

LAB

lab(39.86, -14.61, -5.26)

LCH

lch(39.86, 15.53, 199.8)

OKLCH

oklch(47.6%, 0.0479, 197.6)

HWB

hwb(181.4, 22.7%, 60%)

Harmony colors

Complementary

#663b3a

Analogous

#3a6651

#3a6566

#3a4f66

Triadic

#3a6566

#663a65

#65663a

Split-complementary

#3a6566

#663a4f

#66513a

Tetradic

#3a6566

#3b3a66

#663b3a

#65663a

Square

#3a6566

#513a66

#663b3a

#4f663a

Shades

Color #3a6566 mixed toward black.

#305455

#274344

#1d3333

#132222

#0a1111

Tints

Color #3a6566 mixed toward white.

#4f8a8b

#6aa9aa

#8fbec0

#b5d4d5

#dae9ea

Tones

Color #3a6566 mixed toward gray.

#3e6262

#415e5f

#455b5b

#495757

#4c5454

Accessibility

Aa White text on this color

6.5:1

Aa Black text on this color

3.23:1

White text reads better on this background (6.5:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#505066 · ΔE 21.6

Deuteranopia

#4e4a66 · ΔE 24.6

Tritanopia

#3d6666 · ΔE 0.7

Achromatopsia

#5e5e5e · ΔE 14.9

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

Code

CSS

background-color: #3a6566;

Tailwind (arbitrary value)

bg-[#3a6566]

Related colors

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Dark Slate Gray #2f4f4f

Frequently asked questions

#3a6566 (#3a6566) is rgb(58, 101, 102) in RGB.

No, #3a6566 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

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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 #3a6566, or check how it holds up for accessibility.

Generate a palette → Check contrast