#556e99

Color #556e99

A muted medium blue.

Closest named color Steel Blue #4682b4 · ΔE 11.03 Nearest Tailwind class slate-500 #62748e · ΔE 5.1

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Conversions

HEX

#556e99

RGB

rgb(85, 110, 153)

HSL

hsl(217.9, 28.6%, 46.7%)

HSV / HSB

hsv(217.9, 44.4%, 60%)

CMYK

cmyk(44.4%, 28.1%, 0%, 40%)

LAB

lab(46.15, 2.72, -26.23)

LCH

lch(46.15, 26.37, 275.92)

OKLCH

oklch(53.7%, 0.0741, 260.92)

HWB

hwb(217.9, 33.3%, 40%)

Harmony colors

Complementary

#998055

Analogous

#559099

#556e99

#5e5599

Triadic

#556e99

#99556e

#6e9955

Split-complementary

#556e99

#995e55

#909955

Tetradic

#556e99

#805599

#998055

#6e9955

Square

#556e99

#995590

#998055

#55995e

Shades

Color #556e99 mixed toward black.

#475c80

#394966

#2b374d

#1c2533

#0e121a

Tints

Color #556e99 mixed toward white.

#6d85ae

#8a9ebe

#a8b6ce

#c5cedf

#e2e7ef

Tones

Color #556e99 mixed toward gray.

#5b7093

#60718e

#667388

#6c7482

#71767d

Accessibility

Aa White text on this color

5.15:1

Aa Black text on this color

4.08:1

White text reads better on this background (5.15:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#616190 · ΔE 8.1

Deuteranopia

#5f5d8e · ΔE 9.1

Tritanopia

#568887 · ΔE 21.7

Achromatopsia

#6d6d6d · ΔE 16.6

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

Code

CSS

background-color: #556e99;

Tailwind (arbitrary value)

bg-[#556e99]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#556e99 (#556e99) is rgb(85, 110, 153) in RGB.

No, #556e99 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 #556e99, or check how it holds up for accessibility.

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