#555f6f

Color #555f6f

A nearly neutral, gray-leaning dark blue.

Closest named color Dim Gray #696969 · ΔE 11.24 Nearest Tailwind class gray-600 #4a5565 · ΔE 3.6

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#555f6f

RGB

rgb(85, 95, 111)

HSL

hsl(216.9, 13.3%, 38.4%)

HSV / HSB

hsv(216.9, 23.4%, 43.5%)

CMYK

cmyk(23.4%, 14.4%, 0%, 56.5%)

LAB

lab(40.02, 0.01, -10.35)

LCH

lch(40.02, 10.35, 270.06)

OKLCH

oklch(48.3%, 0.0287, 259.75)

HWB

hwb(216.9, 33.3%, 56.5%)

Harmony colors

Complementary

#6f6555

Analogous

#556c6f

#555f6f

#58556f

Triadic

#555f6f

#6f555f

#5f6f55

Split-complementary

#555f6f

#6f5855

#6c6f55

Tetradic

#555f6f

#65556f

#6f6555

#5f6f55

Square

#555f6f

#6f556c

#6f6555

#556f58

Shades

Color #555f6f mixed toward black.

#474f5c

#393f4a

#2a2f37

#1c2025

#0e1012

Tints

Color #555f6f mixed toward white.

#6c788d

#8893a4

#a6aebb

#c4c9d2

#e1e4e8

Tones

Color #555f6f mixed toward gray.

#575f6d

#59606b

#5b6068

#5e6166

#606164

Accessibility

Aa White text on this color

6.46:1

Aa Black text on this color

3.25:1

White text reads better on this background (6.46:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#595a6b · ΔE 5

Deuteranopia

#59586b · ΔE 6.5

Tritanopia

#566868 · ΔE 10.6

Achromatopsia

#5e5e5e · ΔE 8.4

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

Code

CSS

background-color: #555f6f;

Tailwind (arbitrary value)

bg-[#555f6f]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#555f6f (#555f6f) is rgb(85, 95, 111) in RGB.

No, #555f6f 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 #555f6f, or check how it holds up for accessibility.

Generate a palette → Check contrast