#373942

Color #373942

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 6.66 Nearest Tailwind class zinc-700 #3f3f46 · ΔE 2.5

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

Conversions

HEX

#373942

RGB

rgb(55, 57, 66)

HSL

hsl(229.1, 9.1%, 23.7%)

HSV / HSB

hsv(229.1, 16.7%, 25.9%)

CMYK

cmyk(16.7%, 13.6%, 0%, 74.1%)

LAB

lab(24.1, 1.38, -5.84)

LCH

lch(24.1, 6, 283.3)

OKLCH

oklch(34.6%, 0.0159, 275.78)

HWB

hwb(229.1, 21.6%, 74.1%)

Harmony colors

Complementary

#424037

Analogous

#373e42

#373942

#3a3742

Triadic

#373942

#423739

#394237

Split-complementary

#373942

#423a37

#3e4237

Tetradic

#373942

#403742

#424037

#394237

Square

#373942

#42373e

#424037

#37423a

Shades

Color #373942 mixed toward black.

#2e2f37

#25262c

#1b1c21

#121316

#09090b

Tints

Color #373942 mixed toward white.

#545765

#727689

#9598a7

#b8bac4

#dcdde2

Tones

Color #373942 mixed toward gray.

#383a41

#393a40

#3a3b3f

#3b3b3e

#3c3c3d

Accessibility

Aa White text on this color

11.5:1

Aa Black text on this color

1.83:1

White text reads better on this background (11.5:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#383840 · ΔE 1.2

Deuteranopia

#38383f · ΔE 1.4

Tritanopia

#373e3e · ΔE 7.2

Achromatopsia

#393939 · ΔE 5.4

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

Code

CSS

background-color: #373942;

Tailwind (arbitrary value)

bg-[#373942]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#373942 (#373942) is rgb(55, 57, 66) in RGB.

No, #373942 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.

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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 #373942, or check how it holds up for accessibility.

Generate a palette → Check contrast