#555578

Color #555578

A muted medium blue.

Closest named color Charcoal #36454f · ΔE 19.07 Nearest Tailwind class slate-600 #45556c · ΔE 8.7

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Conversions

HEX

#555578

RGB

rgb(85, 85, 120)

HSL

hsl(240, 17.1%, 40.2%)

HSV / HSB

hsv(240, 29.2%, 47.1%)

CMYK

cmyk(29.2%, 29.2%, 0%, 52.9%)

LAB

lab(37.45, 8.63, -19.81)

LCH

lch(37.45, 21.61, 293.54)

OKLCH

oklch(46.4%, 0.0565, 283.94)

HWB

hwb(240, 33.3%, 52.9%)

Harmony colors

Complementary

#787855

Analogous

#556778

#555578

#675578

Triadic

#555578

#785555

#557855

Split-complementary

#555578

#786755

#677855

Tetradic

#555578

#785578

#787855

#557855

Square

#555578

#785567

#787855

#557867

Shades

Color #555578 mixed toward black.

#474764

#393950

#2a2a3c

#1c1c28

#0e0e14

Tints

Color #555578 mixed toward white.

#6a6a96

#8888ab

#a6a6c0

#c3c3d5

#e1e1ea

Tones

Color #555578 mixed toward gray.

#585875

#5b5b72

#5e5e6f

#61616c

#646469

Accessibility

Aa White text on this color

7.1:1

Aa Black text on this color

2.96:1

White text reads better on this background (7.1:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#555571 · ΔE 2.4

Deuteranopia

#55556f · ΔE 3.1

Tritanopia

#556b69 · ΔE 21.5

Achromatopsia

#585858 · ΔE 15.4

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

Code

CSS

background-color: #555578;

Tailwind (arbitrary value)

bg-[#555578]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#555578 (#555578) is rgb(85, 85, 120) in RGB.

No, #555578 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 #555578, or check how it holds up for accessibility.

Generate a palette → Check contrast