#555c66

Color #555c66

A nearly neutral, gray-leaning dark blue.

Closest named color Dim Gray #696969 · ΔE 8.7 Nearest Tailwind class gray-600 #4a5565 · ΔE 3.9

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

Conversions

HEX

#555c66

RGB

rgb(85, 92, 102)

HSL

hsl(215.3, 9.1%, 36.7%)

HSV / HSB

hsv(215.3, 16.7%, 40%)

CMYK

cmyk(16.7%, 9.8%, 0%, 60%)

LAB

lab(38.8, -0.4, -6.64)

LCH

lch(38.8, 6.65, 266.55)

OKLCH

oklch(47.2%, 0.0185, 257.17)

HWB

hwb(215.3, 33.3%, 60%)

Harmony colors

Complementary

#665f55

Analogous

#556566

#555c66

#575566

Triadic

#555c66

#66555c

#5c6655

Split-complementary

#555c66

#665755

#656655

Tetradic

#555c66

#5f5566

#665f55

#5c6655

Square

#555c66

#665565

#665f55

#556657

Shades

Color #555c66 mixed toward black.

#474d55

#393d44

#2b2e33

#1c1f22

#0e0f11

Tints

Color #555c66 mixed toward white.

#6e7783

#8a929d

#a7adb6

#c4c8ce

#e2e4e7

Tones

Color #555c66 mixed toward gray.

#565c65

#585d63

#595d62

#5b5d60

#5c5d5f

Accessibility

Aa White text on this color

6.75:1

Aa Black text on this color

3.11:1

White text reads better on this background (6.75:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#585864 · ΔE 4.4

Deuteranopia

#585763 · ΔE 5

Tritanopia

#556261 · ΔE 7.9

Achromatopsia

#5b5b5b · ΔE 5.8

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

Code

CSS

background-color: #555c66;

Tailwind (arbitrary value)

bg-[#555c66]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#555c66 (#555c66) is rgb(85, 92, 102) in RGB.

No, #555c66 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.

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 #555c66, or check how it holds up for accessibility.

Generate a palette → Check contrast