#51728a

Color #51728a

A muted medium blue.

Closest named color Slate Gray #708090 · ΔE 9.48 Nearest Tailwind class slate-500 #62748e · ΔE 5.7

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Conversions

HEX

#51728a

RGB

rgb(81, 114, 138)

HSL

hsl(205.3, 26%, 42.9%)

HSV / HSB

hsv(205.3, 41.3%, 54.1%)

CMYK

cmyk(41.3%, 17.4%, 0%, 45.9%)

LAB

lab(46.47, -5.23, -16.88)

LCH

lch(46.47, 17.67, 252.79)

OKLCH

oklch(53.6%, 0.0535, 240.56)

HWB

hwb(205.3, 31.8%, 45.9%)

Harmony colors

Complementary

#8a6951

Analogous

#518a85

#51728a

#51558a

Triadic

#51728a

#8a5172

#728a51

Split-complementary

#51728a

#8a5155

#8a8551

Tetradic

#51728a

#69518a

#8a6951

#728a51

Square

#51728a

#85518a

#8a6951

#558a51

Shades

Color #51728a mixed toward black.

#435f73

#364c5c

#283945

#1b262e

#0d1317

Tints

Color #51728a mixed toward white.

#668ba5

#85a2b7

#a3b9c9

#c2d0db

#e0e8ed

Tones

Color #51728a mixed toward gray.

#567185

#5a7080

#5f707c

#646f77

#696e72

Accessibility

Aa White text on this color

5.09:1

Aa Black text on this color

4.12:1

White text reads better on this background (5.09:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#616185 · ΔE 14.6

Deuteranopia

#5f5c83 · ΔE 15.9

Tritanopia

#53807f · ΔE 13.8

Achromatopsia

#6e6e6e · ΔE 13.1

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

Code

CSS

background-color: #51728a;

Tailwind (arbitrary value)

bg-[#51728a]

Related colors

Charcoal #36454f

Steel Blue #4682b4

Light Sky Blue #87cefa

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#51728a (#51728a) is rgb(81, 114, 138) in RGB.

No, #51728a 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 #51728a, or check how it holds up for accessibility.

Generate a palette → Check contrast