#51817e

Color #51817e

A muted medium cyan.

Closest named color Cadet Blue #5f9ea0 · ΔE 11.54 Nearest Tailwind class teal-700 #00786f · ΔE 9

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Conversions

HEX

#51817e

RGB

rgb(81, 129, 126)

HSL

hsl(176.3, 22.9%, 41.2%)

HSV / HSB

hsv(176.3, 37.2%, 50.6%)

CMYK

cmyk(37.2%, 0%, 2.3%, 49.4%)

LAB

lab(50.63, -16.97, -3.53)

LCH

lch(50.63, 17.33, 191.75)

OKLCH

oklch(56.8%, 0.0524, 190.77)

HWB

hwb(176.3, 31.8%, 49.4%)

Harmony colors

Complementary

#815154

Analogous

#518166

#51817e

#516c81

Triadic

#51817e

#7e5181

#817e51

Split-complementary

#51817e

#81516c

#816651

Tetradic

#51817e

#515481

#815154

#817e51

Square

#51817e

#665181

#815154

#6c8151

Shades

Color #51817e mixed toward black.

#446c69

#365654

#29413f

#1b2b2a

#0e1615

Tints

Color #51817e mixed toward white.

#659f9b

#84b2af

#a3c5c3

#c2d8d7

#e0eceb

Tones

Color #51817e mixed toward gray.

#557d7b

#597977

#5d7574

#617170

#656d6d

Accessibility

Aa White text on this color

4.38:1

Aa Black text on this color

4.79:1

Black text reads better on this background (4.79:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696a7f · ΔE 22.4

Deuteranopia

#66637f · ΔE 25.7

Tritanopia

#547f7f · ΔE 2

Achromatopsia

#797979 · ΔE 16.2

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

Code

CSS

background-color: #51817e;

Tailwind (arbitrary value)

bg-[#51817e]

Related colors

Light Sea Green #20b2aa

Medium Turquoise #48d1cc

Turquoise #40e0d0

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Frequently asked questions

#51817e (#51817e) is rgb(81, 129, 126) in RGB.

No, #51817e 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #51817e, or check how it holds up for accessibility.

Generate a palette → Check contrast