#585b66

Color #585b66

A nearly neutral, gray-leaning dark blue.

Closest named color Dim Gray #696969 · ΔE 8.86 Nearest Tailwind class zinc-600 #52525c · ΔE 3.4

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

Conversions

HEX

#585b66

RGB

rgb(88, 91, 102)

HSL

hsl(227.1, 7.4%, 37.3%)

HSV / HSB

hsv(227.1, 13.7%, 40%)

CMYK

cmyk(13.7%, 10.8%, 0%, 60%)

LAB

lab(38.75, 1.32, -6.69)

LCH

lch(38.75, 6.82, 281.16)

OKLCH

oklch(47.3%, 0.0181, 273.48)

HWB

hwb(227.1, 34.5%, 60%)

Harmony colors

Complementary

#666358

Analogous

#586266

#585b66

#5c5866

Triadic

#585b66

#66585b

#5b6658

Split-complementary

#585b66

#665c58

#626658

Tetradic

#585b66

#635866

#666358

#5b6658

Square

#585b66

#665862

#666358

#58665c

Shades

Color #585b66 mixed toward black.

#494c55

#3b3d44

#2c2e33

#1d1e22

#0f0f11

Tints

Color #585b66 mixed toward white.

#717583

#8d909c

#a9acb5

#c6c7ce

#e2e3e6

Tones

Color #585b66 mixed toward gray.

#595c65

#5a5c64

#5c5d63

#5d5e61

#5e5e60

Accessibility

Aa White text on this color

6.77:1

Aa Black text on this color

3.1:1

White text reads better on this background (6.77:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#595963 · ΔE 1.7

Deuteranopia

#595963 · ΔE 1.7

Tritanopia

#586161 · ΔE 8

Achromatopsia

#5b5b5b · ΔE 6

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

Code

CSS

background-color: #585b66;

Tailwind (arbitrary value)

bg-[#585b66]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#585b66 (#585b66) is rgb(88, 91, 102) in RGB.

No, #585b66 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 #585b66, or check how it holds up for accessibility.

Generate a palette → Check contrast